Question

1. What do „builders‟ and „repairers‟ do in a beehive ?



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Answer 1

Answer:

ouestion 1. Read this passage about how acid rain is formed and the serious damage caused by it .

The air that we breathe today is more polluted than it was before . More factories more vehicles

greater use of aerosols and sprays , increasing number of refrigerators and air conditioners that

release CFC gases , have all contributed toward pollution . When certain chemical from the smoke

and fumes rise up into the air they mix with the water vapour in the clouds and make it acidic .

When rain or snow falls from such polluted clouds , it is also acidic in nature . This acidic rain falls

on the leaves of trees ,on the fertile soil and also runs into lakes and rivers . The effects of the rain

are disastrous . Trees slowly lose their leaves and die . Fertile soil turns acidic and damages the

plants and crops . The fish and animals living in lakes or seas are killed . Even our drinking water

can be affected . Many forest all over the world have suffered sever damage on account of acid rains

. Before it is too late , we must try and put a stop to the ,millions of vehicles and chimneys pouring

harmful fumes into the air .

Question

1 What are the factors contributing to air pollution ?

2 How is acid rain formed ?

3 How does acid rain damage to crops?

4 How is animal life affected by acid rain ?

5 Write true of false

1) Air conditioners and refrigerator release CFC gases –2) Acid rain is harmless

please give me a right answer