Across
- 7. Chinese Communist leader: chairman of the People's Republic of China 1949–59 chairman of the Chinese Communist Party 1943–76.
- 8. Indian political leader prime minister 1966–77 and 1980–84
- 9. the artificial application of water to land to assist in the production of crops.
- 10. a system, or a group of interconnected elements, formed by the interaction of a community of organisms with their environment.
Down
- 1. a river flowing SE from the Himalayas in N India into the Bay of Bengal
- 2. the introduction of harmful substances or products into the environment
- 3. a period of dry weather, especially a long one that is injurious to crops.
- 4. a theory or system of social organization based on the holding of all property in common, actual ownership being ascribed to the community as a whole or to the state
- 5. extreme and general scarcity of food, as in a country or a large geographical area.
- 6. a bomb whose potency is derived from nuclear fission of atoms of fissionable material with the consequent conversion of part of their mass into energy.