D is the correct answer :).
The four inner planets have slower orbits, slower spin, no rings, and they are made of rock and metal. The four outer planets have faster orbits and spins, a composition of gases and liquids, numerous moons, and rings. The outer planets are made of hydrogen and helium, so they are called gas giants.
Answer:
Animal waste decay by the action of bacteria which create :
- Ammonia and nitrate products i.e. rich in nitrogen.
hope it helps!
Read about country Nepal. It has mountain , hill and terai region favouring wide range of life?
