Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

[Q]: Ectothermic vertebrates control body temperature to just a limited extent from the outside by changing behavior.
[A]: What type of vertebrates control body temperature to just a limited extent from the outside by changing behavior?

[Q]: Constructive forces type of forces are involved when deposited rock forms deltas or barrier islands.
[A]: What type of forces are involved when deposited rock forms deltas or barrier islands?

[Q]: Electrical type of energy is useful to humans because it's ease of transport and conversion to other forms of energy.
[A]:
What type of energy is useful to humans because it's ease of transport and conversion to other forms of energy?