Question

Choose the best answer from the bracket

1. By volume, 78% of atmospheric air is _________
(water vapour,CFC, Nitrogen,Ozone)
2.Laterally inverted images are usually obtained in_________
(car headlights,mirrors,torches, photographs)
3.The passage of electric current through a solution causes ________ effect.
[electrical, magnetic, chemical]
4.The mineral which helps to increase blood in the body.
[iron,calcium, chromium)
5.The type of fertilisation in ducks.
[fallopian, internal, external)​

Answer 1

Answer:

by volume,78% of atmospheric air is 21%

Answer 2

Answer:

om

Explanation:

1= nitrogen

2=mirror

3=chemical

4=iron

5= internal

hope it will help you