What are some indicators of energy transformations?

Explanation:

But you can experience many indicators of energy transformations with your five senses—touch, sight, hearing, taste, and smell. The simplest example is when you observe through sight that something has started to move. Energy is always being transformed when an object speeds up or slows down.

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answer: option c. i.e. electric current flowing “downhill” from the negative electrode to the positive electrode in a battery

explanation:

the water analogy to the circuits define the pipes (water flows) to the electric current. now, we know that the electric current flows from the positive terminal to the circuit (as shown in the diagram attached).

hence, option c is the correct answer.

layer a is the exosphere and layer b is the thermosphere.   is the answer i think but i hope this .