Chse Odisha Class 12 Alternative English Unit 1 The Wonder World Of Science Question Answer

The Wonder World Of Science Question Answer Chse Odisha Alternative English

The Wonder World Of Science Question Answer Alternative English

Activity -1

Relation Between Parts of a Text:
If you are asked to divide the lesson into 5 sections in order to make notes, where possibly could you draw the lines separating the sections?
Write the paragraph number and the last word of the paragraph after which you will start a new section. Suggest a title for each section.
Answer:
Section- 1: Paragraph-1 …………… harmful
Title: Old Fashioned Remedies for Cold
Section- 2: Paragraphs – 2-4 …………avoided
Title: Morphine, Codeine and Papaverine as Remedies.
Section- 3: Paragraphs 5-6 ………… cold
Title: What The Scientists Studied.
Section- 4: Paragraphs 7-8 ………………..complications
Title: Opium Derivatives and Bed Rest.
Section- 5: Paragraph-9 ……………………..before
Title: Hot Baths and Cold Measurement

Activity – 2

Summary skill:
Of the following six statements only three are main points of the passage. Identify them:
(i) Many widely advertised cures and home remedies for cold are worthless or harmful
(ii) Students treated with sugar tablets showed little improvement.
(iii) Neither vaccines, nor vitamins and any other dietary measures prevent cold.
(iv) Nasal drops and sprays are found to be dangerous.
(v) Staying in bed for the duration of the cold was the only remedy that showed any result.

Activity-3

Comprehension:
Question 1.
The second paragraph possesses a question, what is it?
Answer:
The question is: Is there any remedy, then, of value in the treatment of colds?

Question 2.
What answer does the writer suggest?
Answer:
The writer says that there is scarcely any viable alternative for the treatment of common cold. However, there are a good many kinds of medicines which can be administered against cold.

Question 3.
How does the writer establish his answer?
Answer:
The writer picks up names like Morphine, Codeine, Papaverine combination, quinine hot water, air and stream baths were used as common therapies for cold but not as permanent cures.

Question 4.
What further recommendations did the writer make?
Answer:
The writer also brought out the names of different experts such as Dr. Russell Cecil, Dr. FitzHutter, De Quineeywhose findings were the best recommendations in the treatment of cold.

Activity – 4

Sequence In an Experiment:
What are the steps of the experiments mentioned in paragraph 4 and 5? Rearrange the steps given below in proper order:
(i) Record the health conditions of the patients at regular intervals.
(ii) Record initial health conditions of all the patients.
(iii) Compare the health conditions of the experiments group with that of the control group.
(iv) Prepare dummy to mixture.
(v) Draw inference after analysis of findings.
(vi) Divide the patients into experimental and control groups.
(vii) Select sample patients.
(viii) Prepare Codeine- Papaverine mixture.

Activity -5

Composition:
In this part of the country Tulsi leaves with honey are considered remedies for common cold. If you have to conduct an investigation to ascertain the truth of this belief, how will you organise the experiment? You can take clues from the reading passage and write down the steps of your proposed experiment.

Activity – 6

Remedial Grammar:
Morphine (which is) a derivative of opium, showed excellent results. (Paragraph – 3)
This preparation (which is) common called copavin, is not advertised to the public (Paragraph- 5)
In these sentences you have seen examples of non-defining relative clauses. Such clauses are separated from the main clauses with the help of commas. Secondly, the relative pronoun (like ‘which) and the ‘be’ verb can be omitted. The relative clauses without the relative pronoun and the ‘be’ verb are called the reduced relative clause. Similar reduction is possible in defining relative clauses also. Now reduce the relative clauses in the following sentences:
(a) They stood on the bridge which was connecting Cuttack with Jagatpur.
(b) The girl who is standing at the bus stop over there is my sister.
(c) The weapon that was used in the murder has been found.
(d) The boys who are being chosen for the college team are all under 18.
(e) The wooden beams which were holding up the roof have been damaged.

Activity – 7

Remedial Grammar:
1. Nasal congestion and stillness are reduced.
2. It was found that powered opium and Dover’s powder were beneficial.
3. The progress of the cold seemed to be arrested.
4. Commercial remedies are still sold.
In scientific tests were offer to see the examples of passive sentences. Whatever reduced nasal congestion, whoever found it out are unimportant in the first two sentences above. Similarly, we get examples of get-passive and have-passive scientific texts e.g.

When the boy gets chilled ___________.
I had my eyes tested.
Now rewrite the following sentences using passive structures like have/get + v + past participle.

The first one has been done for you.
1 . Our houses looked ugly. Its paint was pelling off.
So we got /had it painted.
2. Raman’s watch book. He could not afford to buy a new one.
So _____________
3. Lili split coffee on her favourite dress. She could not wash it by hand.
So _____________
4. In the super cyclone the roof was flown flourished and a wall fell down.
So _____________
5. Sharukh’s car was not starting well and seemed to be using too much petrol. But he did not want to sell his lucky car.
So _____________

Answer:
2. Raman’s watch broke. He could not afford to buy a new one.
So he had it repaired.
3. Lili split coffee on her favourite dress. She could not wash it by hand.
So she got it washed.
4. In the super cyclone the roof was flown of four shed and a wall fell down.
So we had it rebuilt.
5. Sharukh’s car was not starting well and seemed to be using too much petrol But he did not want to sell his lucky car.
So he got it repaired.

CHSE Odisha 12th Class Alternative English Solutions Unit 1 Text B: Typing your own Blood

Activity – 8

Comprehension:
Question 1.
What does typing someone’s blood mean?
Answer:
Typing someone’s blood means determining the exact type of blood a person usually has. It was make one know one’s blood – group whether ‘A’ or ‘B’ or ‘O’.

Question 2.
What materials are necessary to type one’s blood? Which paragraphs tell you about these materials?
Answer:
Alcohol – soaked cotton balls, sterile lancet, a small test tube containing 1ml. of saline solution, anti-A anti- B and anti- Rhserum with individual eye droppers, two microscope slides, a grease pencil, a posture pipette, three applicator sticks and a warm fluorescent light or other low-heat sources are used on typing one’s blood.

Question 3.
What are the three stages of experimental process described in this text? Name them.
Answer:
First label one slide Rh with a grease pencil and place it under the low-heat source. Divide the cool slide into two equal portions labeling one side A and B and a drop of anti- Rh to warm the Rh slide. In the second stage, use an alcohol-soaked cotton ball to swab your middle or ring finger opening the sterile lancet prick the sterile finger once. Collect several drop of blood in the tube containing saline solution. In the third stage, using the porture pipette, transfer one drop of saline solution containing blood to each of the anti- A, anti- B and anti-Rh serums using a separate applicator stick. Two or three minutes after clumping should have appeared in one or three of the areas. This clumping determines what kind of blood a person has. The stages can be named as preparatory stage, experimental stage and conclusive stage.

Activity – 9

Remedial Grammar:
Like your Rh- slide experiment, you have only two tense forms of most of the English verbs, e.g. “go” and “went”. “Gone” is not a tense form. In association with the other auxiliary verbs, it gives a sense of completion of an activity“has gone”ora passive sense “is done”. Hence like Rh+ or Rh-. English verbs can be either in past tense or non-past tense.

Similarly like your blood grouping. A, B, AB or O, we can have the aspects of perfect (have + V + en), progressive (be + V + ing), perfect progressive (both combined or simple neither, perfect, nor progressive). These four aspects of either past or non-past give us the 8 types of verb groups. In addition to these two tenses and four aspects we can find do operations or model auxiliaries as elements ofa very group.

In the first sentences of the text, the verb is……used. You can see that it is be + v + en structure in simple non-past tense form. Hence, is a simple non-past passive structure. Similarly, find out the aspect, tense and voice of the following verb groups: Illustrates has finished is doing had been completed was being conducted.

Tense	Aspects	Voice
(i) Past	(a) simple	(i) Active
	(b)perfect
(ii) Non-past	(c) progressive	(ii) Passive
	(d)Perfect Progressive

Answer:

Verb groups	Tense	Aspects	Voice
Illustrate	Non-past	Simple	Active
has finished	Non-past	Perfective	Active
is doing	Non-past	Progressive	Active
had been completed	Past	Perfective	Passive
was being conducted	Past	Progressive	Passive

Activity -10

Composition:
In the passage you have step-by-step instructions on how to test and categorize your blood. Write instructions to carry out one of the following tasks.
(a) Teaching your friend how to make tea/cake/an omelette.
(b) Instructing a new friend how to reach your home.
(c) How to fix a fuse wire on your main switch.
Answer:
(a) How to make tea:
Ingredients: water, sugar, tea dust, boiled milk.
Instruments: stove, fry pan, a flat metal piece, spoon, a seive.

Preparation:
(i) Fire the stove.
(ii) Pour required cups of water.
(iii) Mix spoons of sugar as required.
(iv) Add one/two spoons of tea or as required.
(v) Serve the hot solution.
(vi) Add boiled milk to it.
(vii) Serve it in cups.

CHSE Odisha 12th Class Alternative English Solutions Unit 1 Text C: Some Differences

Activity -11

Scanning:
Which of the following aspects have not been discussed in the text?

Blood style	Energy reserve capacity
Blood production	Startup energy capacity
Shape of bones	Capacity for exercise
Size of bones	Need for oxygen
Arrangement of bones	Rate of breathing
Thickness of skin	Amount of Oxygen- intake
Hardness of skin	Pigment in the skin
Fat layer under skin	Ageing rate
Muscle – Fat ratio	Amount of muscles

Answers:

Blood type	Need for oxygen
Blood production	Rate of breathing
Hardness of skin	Pigment in the skin
Amount of muscles	Ageing

Activity -12

Comprehension:
On the basis of your reading of the passage, mention whether the following statements are true or false. Put (T) for true and (F) for false at the end of each statement.

(i) Women produce blood more efficiently than men.
(ii) Men need more oxygen than women.
(iii) Men draw in more pollution during breathing.
(iv) Climbing stair is easier for women.
(v) Women wrinkle faster than men.
(vi) Menare cooler in summer.
(vii) Men have more muscle than women.
(viii) It is easier for women to lose body weight.
(ix) Man can work for longer hours than women.
(x) Man grow weaker at a foster rate as they grow.

Answers:
(i) Women produce blood more efficiently than men. (T)
(ii) Men need more oxygen than women. (T)
(iii) Men draw in more pollution during breathing. (T)
(iv) Climbing stair is easier for women. (F)
(v) Women wrinkle faster than men. (T)
(vi) Menare cooler in summer. (F)
(vi) Men have more muscle than women. (T)
(viii) It is easier for women to lose body weight. (F)
(ix) Man can work for longer hours than women (F)
(x) Man grow weaker at a faster rate as they grow. (T)

Activity – 13

Vocabulary:
Match each work or expression in italics in column with in meaning in column B.

A	B
1. A more recent and chilling finding	(i) Put a leg forward to walk
2. which enables them to stride out with no waste motion	(ii) difficult
3. she displays a bit of jiggle and sway at the walks.	(iii) frightening
4. makes climbing awkward for her	(iv) protect
5. The fat layer helps insulate them against heat.	(v) movement from side to side

Answers:

A	B
1. A more recent and chilling finding	(i) difficult
2. which enables them to stride out with no waste motion	(ii) Put a leg forward to walk
3. she displays a bit of jiggle and sway at the walks.	(iii) movement fromside to side
4. makes climbing awkward for her	(iv) frightening
5. The fat layer helps insulate them against heat.	(v) protect

Activity -14

Cause-And-Effect Sequence:
Men have longer bones, narrow pelvis and their bones are arranged differently. So the result is that they walk with astride and climbed stairs more quickly. Similarly, find out from the text the causes that result in the following effects.
(i) Men can lose weight more quickly.
(ii) Men have greater strength.
(iii) Menare less intelligent
(iv) Surgery is riskier for men.
(v) Men can do less exercises then women as they grow older.

Answers:
(i) Men can lose weight more quickly.
Answer:
The higher proportion of muscles to fat makes it easier for men to lose weight.

(ii) Men have greater strength.
Answer:
In fact, men have considerably less fat than women and more lean mass. Forty- one percent of men’s body is muscle compared to thirty- five percent for women, it means that men have more music power. When it comes to strength, almost 90 percent of a man’s weight is strength compared to about 50 percent of a woman’s weight.

(iii) Men are less intelligent.
Answer:
Researchers have found that the children with the highest concentration of lead in r their bodies have the lowest scores on their intelligence tests and that boys score more than girls.

(iv) Surgery is riskier for men.
Answer:
Men cannot manufacture blood as efficiently as women can. Men also need more oxygen because they do not breathe as often as women.

(v) Men can do less exercises then women as they grow older.
Answer:
For all men’s muscularity they do not have the energy reserves women do. They have more start up energy, but the fat fucked away in women’s nooks and crannies provides a rich energy reserve that men lack healthy women on treadmills discovered that over the years the female capacity for exercised exceeds the male capacity.

Activity – 15

Inferring:
You can infer information that is not stated clearly in a text by making a logical guess either from what is on the text, or what you know about the world or both.
(i) What happens during surgery that makes it riskier for men?
Answer:
Men cannot manufacture blood as efficiently as women can. This makes surgery riskier for men. As men breathe deeply they inhale more pollutants that complicates surgery.

(ii) Whose knees are more likely to be hurt by the same activities men’s or women’s?
Answer:
Women’s knees are more likely to the hurt by the same activity.

(iii) Name one part of the body where bad goes when it’s breathed in?
Answer:
Lead goes to brain through blood causing less intelligence.

(iv) Name one advantage a man would have and one advantage a women would have in a hot, sunny country?
Answer:
Men in sunny countries wrinkle less than women do women, stay cooler in summer.

(v) If a man and woman weighed the same at the age of 20, who would be strong at the age of 60?
Answer:
A woman would be stronger at the age of 60.