Who am I?
I am derived from tomato and turn blue litmus into red.

Blue litmus turns red in

Who am I? I am the base of food chain

Who am I? I depend on plants and animals

Who am I?I depend on plants for food.

The substance that turns blue litmus to red is…………in nature.

Who am I? I am formed by the fusion of male and female gametes

Who am I? I am called antichlor and am used to remove excess chlorine from clothes when treated with bleaching powder.

I am a human hormone. I am secreted from a gland near to neck. I influence general growth rate and metabolic activity in our body. Who am I ?

I am cooked on steam. Who am I?

Who am I? I am a product of gypsum and am·used to making chalks and fire proof materials.