What do grass eating animals release in large amount when their food is digested?

Which of the following grow well in the warm and moist air of a greenhouse?

Melting of polar ice caps and rise in water levels of oceans are effects of:

What does the smoke from vehicles, factories and houses pollute?

The gases in the atmosphere do not allow the heat to escape back into space,they warm up the earth. This effect is called:

What is done to reduce the accumulation waste like metals, paper clothes, rubber and plastic in land fills?

A glass house where we grow plants especially during winter:

What are used to make jewellery items like beads, rings and bracelets?

Greenhouse gases in the atmosphere trap the heat of the sun and there is a rise in temperature on the earth. This is called:

Earth's atmosphere is a blanket of: