Amountaineer is planning an expedition. he wants to follow the easiest possible path, which means he needs to find the most gentle slope up the mountain. which route should the mountaineer choose? a. route a b. route b c. route c d. route d

He will need to take the first route, Route A.  This is because if you look, the drops are far more spaced away from each other than that of b,c, or d.

Route A

Explanation:

From the topographical map, one can determine the steepness of the mountain. Close contours indicate a steep slope but wide contours depict a gentle and a broad slope. The wider the contours, the broader is the slope.

In the given image, the most favorable path will be route A as the contours are widely arranged, indicating a much gentle slope. The route might be long but is efficient. So the mountaineer will decide to take the route A to climb the mountain without much difficulty and risk factor.

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.