Only 1- the experiment can not show a cause and effect relationship if there are more than one factors contributing to the outcome.
Biogeography- it is the geographic location and distribution of living
organisms.
It provide evolution in many ways because organisms are not
distributed evenly throughout the world, but related organisms are found in the
same isolated parts of the world and this is not explained by
climate.
The sun rays are received by the plants and explell oxygen and we breath the oxygen to be able to survive
Answer:Chlorophyll, carbon dioxide, Oxygen
Explanation:
no its not its not a statment
