Which option is the best action for the forest surveyors to take in the following scenario?

A group of forest surveyors discovers a section of a forest that is dying. They check the trees and discover that a strain of disease has caused them to die. Even though the saplings look like they are dying, they discover that the saplings and plants on the ground are not diseased, just malnourished.

The surveyors hire a group of loggers to bulldoze the entire section of forest and let the forest regrow as it naturally would.
The surveyors decide to cut down all the plants and construct new buildings on the land rather than regrow in a diseased area.
The surveyors hire a group of loggers to cut down the diseased trees in order to allow the plants and saplings to receive light and nutrients.
The surveyors decide to leave the area in its current condition, which will allow the forest to handle the tree disease as it naturally would.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.

answer: 20 percent

the fish culture has become a developing commercial practice in developing countries which is already prominent in developed countries of the world. the major fish protein demand is being supplemented in developing countries is   fishing to meet the needs of the growing population. therefore, in some developing nations, the percentage of animal protein from fish in the diet can be as high as 20 percent.