1.
How many molecules are there in one litre of water?
2.
If we dissolve salt in water, does the boiling point change? If yes,
will the boiling point increase or decrease?
3.
List different pollinators. What are the different strategies that
plants and trees use to attract certain pollinators? Give some examples.
4.
Why do many tree species in central India shed their leaves in the
beginning of winter? Why do some of the trees put out new leaves much
before the rainy season?
5.
Why is glue sticky?
6.
What is the greenhouse effect?
