Question

Q.5 Answer in brief : (Any 7]
1. What is monsoon? Wame the direction from which monsoon winds blow into our country during summer.
2. Why do birds migrate ?
3. How do insects help in pollination ?
4. What is an aquifer ? What is the upper level of aquifer known as ?
5. What is physical change ?
6. What is the weather ? What are its elements ?
7. How do woollen clothes kept us warm in winter ?
8. What is laboratory thermometer ?​

Answer 1

Answer:

1) monsoon is a seasonal shift in wind direction. It can cause heavy rainfall during the summer

2)Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds. Many species of bird migrate,It occurs mainly in the northern hemisphere,

3)Insect pollination is crucial to most gardens and is as simple as insects like bees, butterflies and wasps flying from flower to flower in order to collect nectar. In the process, pollen collects on their bodies and rubs off on other flowers that they visit

4)