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mafiozo [28]
3 years ago
13

Is it B or D , Help !!!

Biology
2 answers:
faltersainse [42]3 years ago
8 0

Answer:

D

Explanation:

electrons is a thing itself with magnetic energy

avanturin [10]3 years ago
4 0

Answer:

d

Explanation:

my sis took the test

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The rapid decomposition of organic matter produces evidence which supports: the slow accumulation of coal deposits long ages of
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Answer:

rapid burial of vast amounts of vegetation

Explanation:

The organic matter is always decomposing, just that it depends on the conditions at what kind of a rate the decomposition will happen. If the climate is warmer and humid, then the decomposition is very quick. This results in a rapid burial of enormous amounts of vegetation. As the vegetation dies out, it piles up constantly, decomposes very quickly, and if there is something that can cover it, like mud for example, it will be buried in the ground. This is actually how the big deposits of coal have got the basis to form in the Carboniferous period.

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When the structure and function of an organism adjusts to its environment it is adapting.
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2 years ago
*EXTRA PTS* How much weight is needed for a 10 m high ball to achieve 400 J of potential energy?
mafiozo [28]

Answer:

,Mass of the Body = 10 kg.

Height = 10 m.

Acceleration due to gravity = 9.8 m/s².

Using the Formula,Potential Energy = mgh

= 10 × 9.8 × 10 = 980 J.

(b). Now, By the law of the conservation of the Energy, Total amount of the energy of the system remains constant.

∴ Kinetic Energy before the body reaches the ground is equal to the Potential Energy at the height of 10 m.

∴ Kinetic Energy = 980 J.

(c). Kinetic Energy = 980 J.

Mass of the ball = 10 kg.

∵ K.E. = 1/2 × mv²

∴ 980 = 1/2 × 10 × v²

∴ v² = 980/5

⇒ v² = 196

∴ v = 14 m/s.

7 0
3 years ago
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Why is the Transfer of energy and matter in a food chain only<br> about10 percent efficient?
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The quantity of energy decreases down each trophic level as only 10% of the energy at the upper level is transferred to the next level, the remaining 90% is lost as heat during metabolic process. Through the energy pyramid we can explain how energy is lost at each trophic level, the number of consumer at each trophic level that will benefit from the transfer of energy depends on the size and quality of the energy from the autotrophs

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when a person is making cardiovascular gains through aerobic activity they are in creasing the amount of to their heart and lung
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