The northern part of Africa is a

1. A mountain
2. A plateau
3. Lowland
4. Desert

Answer in one word.

(i) Deep inlets of sea lying between high cliffs.

(ii) A shallow low lying on the earths surface.

(iii) Chain of mountains formed due to compression.

(iv) Land of ten thousand lakes.

(v) A narrow steep sided valley, formed between two parallel fault.

State the major effects of climate change.

Name the major greenhouse gases and their sources.