What methods control pollution at source? traps contaminants from runoff water. practicing conservation tillage prevent .

Practicing conservation tillage

Explanation:

Conservation tillage is an agriculture practice. In this the soil is plowed up and down so as to make the soil texture loose, removes the compaction of the soil, improves the water holding capacity of the soil so that the water instead of flowing over the surface get absorbed by the soil. This practice will reduce pollution of the water source as the soil will absorb the water no surface runoff of materials such as agricultural fertilizers and pesticides into the water source. Hence, the pollution will be prevented.

answer: after carbon dioxide enters the leaf through stomata it moves into the mesophyll cells where photosynthesis occurs and glucose is constructed. respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy.

explanation:

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.