(Q).
If making an object hot causes thermal expansion, then what causes thermal expansion? Answer choices: - Electrical energy - energy of moving objects - making an object hot - cooling an object - freezing an object - chemical reaction - global warming - stretching an object
(A).
making an object hot

(Q).
If ahemisphere is tilted towards the sun during the summer, then when is a hemisphere tilted towards the sun? Answer choices: - mild - Vernal equinox - autumn - Spring - Summer - positive - Autumnal Equinox - Tropical
(A).
Summer

(Q).
If people can only survive a few days of dehydration, then how long can people survive while dehydrated? Answer choices: - A few days - An hour - the environment - sweating - Forever - A few weeks - dangerous - Winter
(A).
A few days