Question

1) Blue litmus paper is dipped in a solution. It remains blue. What is the nature of the solution?
2) Leaves of trees ,Banner , Flag fluttered when wind is blowing. Why?
a) air occupies space
b) air is a mixture of gases
c) air exerts pressure
d air is colour less
3) which of the following helps in soil formation :
a) formation of rocks
b) arrangement of layers of sand
c) breaking down of rocks
d) arrangement of rocks
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Answer 1

Answer:

1. Neutral

2. the air exerts pressure. It is due to this pressure that the leaves of trees, banners, or flags flutter when the wind is blowing.

3. Breaking down of rocks helps in soil formation.

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