Q. Define ‘Law of constant composition or definite Proportions’. Explain with a suitable example.

Q. Name two natural ecosystems and two artificial ecosystems.

Q. Name the largest: (a) Artery (b) Vein in our body.

Q. Name the functions of Endometrium.

Q. The crust of the Earth is called …………

Q. What are pioneer species? Give an example.

Q. Your cooperation is highly solicited, meaning if any.

Q. What is meant by globalisation?

Q. How did Valli save money for her first journey? Was it easy for her?

Q. Mention the post fertilisation changes that occur in a flower .