The flow of energy and matter through an ecosystem may be compared to a waterwheel in a river. how is this comparison accurate? how is this comparison inaccurate?

A waterwheel in a river or hydraulic wheel, refers to the device which circular form that transforms the water flow into other useful form of energy. It was built in ancient times to agricultural activities purposes, which made people able to take advantage of the strength of the river current.

This waterwheel concept could be used as an analogy for the movement of the flow of energy and matter in the ecosystem, both energy movements are circular, that is, cyclic. The waterwheel uses the conservation of energy theorem, which expresses that the energy is a constant that it gets transformed to different ways, this concept is presents in the waterwheel and the energy and matter flow in the ecosystem. So, this couls be an accurate comparison between them, there are cyclic energy transformations.

On the other hand, an inaccurate comparison between them could be in the literal scenario, that is, the process invoved in the energy and matter flow in the ecosystem are not present in a waterwheel process, which of them have different processes that performs a cyclic energy transformation.

emily ruth's annual premium is $1058.50

step-by-step explanation:

emily ruth is a female of 27 years age purchasing 20 year endowment insurance with face value $25000.

from the given table,

for females, the age of a male 3 years younger should be used.

so, we have to check for 24 year male for 20 year endowment.

it is 42.34 for every $1000 face value.

for a face value of $25000,

it is 25 * 42.34 = $1058.50

∴ emily ruth's annual premium is $1058.50

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.