Question

an
B. Fill in the blanks
1. The average thickness of the lithosphere is about
km.
2. Freshwater is made available on land through the process of
3. The word biosphere comes from a
word 'bios', meaning
4. The greatest danger to the environment is from​

Answer 1

Required answers :-

1. The average thickness of the lithosphere is about 100 km.

2. Fresh water is made available on land through the process of water cycle.

3. The word biosphere comes from a word 'bios', meaning life.

4. The greatest danger to the environment is from humans.