If enough ejecta (mainly ash) is sent into the upper atmosphere, the dust particles will block solar energy causing a decrease in temperature. This has happened in the past. Look for the year without summer caused by a volcanic eruption.
Calvin cycle is responsible.
50-70%. At the age of 1, percentage is around 65%. In adult men, 60% of their bodies is water. 55% of adult women's weight is water due to fat not holding as much water as lean tissue; fat makes up more of women's bodies than men.
The correct option is A.
Living organisms depend on their environment to survive, when there are changes in the environment which are not favorable to the living organisms, it will eventually leads to the wiping out of the living organisms. As time goes on and the environment recover, the living organisms that will be found in the new environment are those who will be able to survive in it.
