Q: Fact 1: Staying warm has a positive impact on an animal 's survival. Fact 2: Effective insulation is the way to keep the warm air warm. Given the two facts above, effective insulation has a positive impact on an animal's what?

Options are:
a). heat energy;
b). survival;
c). water;
d). food;
e). growth;
f). ideas;
g). Energy.;
h). energy;
The answer is:
b).