CTET Environmental Science MCQs
1. We have days and nights because of:
(a) Earth’s rotation
(b) Earth’s revolution
(c) Sun’s rotation
(d) Sun’s revolution
2. The tail of flying birds acts as rudder. By this statement we can understand that the tail acts as:
(a) A part of the body which is beautiful
(b) A part which wards off flies and mosquitoes
(c) A part which guides the bird while flying
(d) A part which helps the bird take off