I dont want to mislead you, but I believe the answer is A because letter B is wrong because plants go through cellular respiration and photosynthesis, whereas animals go through cellular respiration but not photosynthesis, and for C, I've never heard of that so it doesnt seem likely.
 
        
             
        
        
        
Answer:
B !
Explanation:
I'm basing this off of a lesson I took two years ago, but the answer is B! The interior of Earth is rumored to be filled with magma as a way to have convection currents in itself, and to move the tectonic plates/ create the tectonic plates, if I remember correctly. 
If i'm wrong I can still prove why it's not the other choices.
It's not A becuase when rock gets hotter, it rises, and when it cools, it sinks.
it's not C becuase it said "interior of the planet", which it may be referencing somewhere having to do to below the crust. as well, you need to cool rocks as to make it solid, not heated up rocks. but even then, mountains are made by the plates.
it's not D becuase glaciers are affected by climate change and occurrences the biosphere, not the interior of the planet.
 
        
             
        
        
        
Answer: Coal is primarily used as fuel to generate electric power in the United States. In coal-fired power plants, bituminous coal, subbituminous coal, or lignite is burned. The heat produced by the combustion of the coal is used to convert water into high-pressure steam, which drives a turbine, which produces electricity.
Explanation:
 
        
             
        
        
        
<h2>Answer:
</h2>
A- Crest.
B- Wavelength.
C- Equilibrium.
D- Trough.
E- Amplitude.
<h2>Explanation:
</h2>
- A crest is the point on a wave of maximum value of upward displacement within a cycle.  
- Wavelength is the distance between two identical adjacent points in a wave.
- Equilibrium is a state of balance between opposing forces; a state of balance in which opposing forces cancel one another.
- A trough is just the opposite of a crest, so it is the minimum(downward displacement) or lowest point of a wave in a cycle.
- Amplitude of a wave is the maximum distance or displacement moved by a point on a vibrating body or wave. Amplitude of a wave is directly proportional(∝) to the amplitude of the vibrating object(source).
Result: Crest, wavelength, equilibrium, trough and amplitude is the correct answer.