Question

Give reasons for the following statements.
1. Penguins can easily live in the polar regions.
2. The winds flow from the sea towards the land in summer.
3. Place a crumpled piece of paper on the mouth of an empty bottle and it comes outside when you blow air inside the bottle. ​

Answer 1

1. Penguins can easily live in the polar regions because it has a blubber under its skin in which helps it to generate heat and it also cuddles with other Penguins to make itself warm.

2. During summer wind flows from sea towards the land because due to high heat water in the sea evaporates and hot air moves to the land

3. If we place a crumpled piece of paper on the mouth of an empty bottle and if we blow air inside the bottle it will come outside this happens due to air circulation. The Air blown inside the bottle circulates and hits the paper and moves it outside