(Q).
Q: What is the term for a period when temperatures are cooler than normal causing glaciers to spread to lower latitudes? Choices: - cooling era - cold age - freezing point - ice age A:
(A).
ice age

(Q).
Q: What helps push the fetus from the uterus during birth? Choices: - glands - tremors - Shaking - contractions A:
(A).
contractions

(Q).
Q: The number of electrons in the outer energy level determines what property of nonmetals? Choices: - density - permeability - vibration - reactivity A:
(A).
reactivity