Answer:
1 is
Explanation:
no. 1 is water cycle
no.2 is food chain
no.3 is carbon-oxygen cycle
no.4 is mineral cycle
Facilitated diffusion plus cotransport mechanisms
When was BSE first discovered?
BSE first appeared in British cattle in the mid-1980s. There have been numerous cases detected in other countries. A complete list of countries is available from both the U.S. Food and Drug Administration (FDA) and the U.S. Department of Agriculture (USDA).
Hello. a force on an object pulling it towards the center of the earth is known as gravitational force. hope you benefited from it. reply.
