7th English - Avoid Plastic - Question answers

 


Avoid plastics 


C1. check your understanding 


C1. Answer the following questions 


1.Who invented plastic? 

Ans - Alexander Parkes invented plastic


2. What did he name it?

Ans - He named it as Parkesine.


3. Why do people dispose plastic everywhere?


Ans - Because plastic is cheap and it is easily available so people dispose plastic.


4. Give reason for plastic pollution. 


Ans - Plastic stays on earth surface for many centuries as it is long lasting and impossible to discompose. So plastic causes for pollution. 


5.Where is plastic pollution seen more plastic?


Ans - Plastic pollution seen more in big cities. 


6.Where does the plastic so disposal remain?

Ans - The plastic so disposal remains in the soil in the same form.


7. How does plastic cause pollution at every stage of it's production?


Ans - The chemical that is used in the production of plastic is toxic. The plastic is long lasting and impossible to decompose and the recycling degrades the quality of plastic. 


8.How long can plastic take to decompose?

Ans - A single plastic sheet can take about thousands years to decompose.



9. How does it have a bad impact on the earth? Ans - Plastic has bad impact on the food chain. It also one of the causes for 'global warming'.




C2. Answer each of the following questions in two or three sentences.


1. Why is plastic widely used today?


Ans - Plastic is inexpensive. It is long lasting. it is easy to make and easily available everywhere. So plastic is widely used today.


2. How does plastic cause environmental 

hazards?


Ans - Plastic stays on earth surface for many centuries, as it is long lasting and is impossible to decompose, So it ultimately causes enormous environmental hazards.


3.What are the problems caused by recycling plastic.

Ans - In the recycling of plastic, the quality of plastic is degrades and demands the production of more plastic to make an original product.This is the big problem in it's recycling.



C3. Discuss with your friends and compare your ideas with about what should be used instead of plastic.


Ans - We can use cloth bags, papers bags, steel utensils, iron chairs and leaf plates instead of plastic.


Vocabulary 


V1. Read the following passage:

            People are foolish to use plastic extensive. Some people think that the argument against the use of plastic is meaningless. Only when people come to know about it's threats , it will be a remarkable achievement. This awareness has to be created.



Suffix:


Look at the syllables underlined in the paragraph above.


      The addition of syllable at the end of a word is called as a suffix. Here suffixes are used to change words into adjectives or nouns. Suffixes like able,less, some ,ous, ful etc., are used to make the words adjectives. Use the words in the cloud to make your own words with suffixes. 


One is done for you.


comfort - comfortable



Ans-Awareness 

        Careful 

        Regardless

         Comfortable 

         Troublesome.  

          Glorious 

          Sportive



G. Language in use:


 Read the questions.


 one who are you. 

1.Who are you?

2.Why are you laughing?

3.Which pen do you want?

 4.when do you get up?

 

5. How tall are you? 


             There are some question words in the English language. which begin with the letters "wh" , except the word "how". They are used for asking questions. They are also called introgatives. some of them are scared below.


why, which, when, where, what, who, whom, and how.



G1. Fill in the blanks we suitable question words.


 one is done for you. 


*why is plastic pollution concentrated in big cities ?


1. ………… did the train live?

Ans - When 

2. …………. do you want from me?

Ans- What

3. …………of the roads is shorter?

Ans - Which

4. ………… will you reach there?

Ans - When

5. ………… did you come? ( by bus or by train) 

Ans -How

6. ………… your sister crying so loudly?

Ans - Why


G2. Some action words can be changed into noun forms.


The word 'furnish' a verb, becomes 'furniture' when it is used as a noun. In the same way,

'add' becomes ’addition’.


A. Find out the noun forms of the words given below. use a dictionary if necessary.


One is done for you


1.born - birth 

2.Mary - marriage 

3.graduate - graduation

4.high - height 

5.impress - impression 

6.inspire - inspiration

7.perform -performance


B. Now fill in the blanks with the suitable noun forms mentioned above.


one is done for you.


The birth of girl child made everybody happy in the family. After she grew up her, marriage was arranged with the boy who had a graduation in computer science he had reached a very great height in his career is friends had a good impression about him inspiration was his grandfather whose performance as a scientist was recognised by the government


W2. Write a few slogans to save mother Earth.   (English /Kannada )


one is done for you


1) Petrol saved is petrol conserved.

2) save our mother earth.

3) save nature save earth.

4) Avoid plastics and save Earth. 

5) Keep our Earth green and clean.

6) Save the earth and save the future.



Dictionary work 


D1. Rearrange the words in alphabetical order as you find them in the dictionary.


  one is done for you 


 * agony ,exchange, discover, knock, inlet


 Ans - agony discover exchange in late knock


1. plastic, cheap, mould, dispose, hazard 


Ans - cheap, dispose, mould, hazard,plastic


2.decompose, enormous, reduce ,damage,marine

Ans - damage, decompose, enormous, Marine, reduce 


3. create, degrade, compose ,abolish ,chords 


Ans - abolish, cause, complain, create, degrade


4. retain, reduce, remain, recycle ,river


 Ans - reduce, remain, retain, river.


 5.product ,present, pollute, problem, profit


Ans - pollute, present ,problem ,product ,profit





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