Which statements represent convection? check all that apply.

~ black asphalt gets very hot on a sunny day.
~ the movement of air in a hot-air balloon makes it rise into the sky.
~ a dark sand beach can burn the soles of your feet.
~ a spoon gets warm from sitting in a soup pot.
~ a house has high heating bills because the heat ends up in the attic.
~ a house loses heat through an exterior wall.

The movement of air in a hot-air balloon makes it rise into the sky.

A house has high heating bills because the heat ends up in the attic.

Explanation: Convection is a form of heat flow where heat is transferred through fluids. When a gas or liquid absorbs heat, its density decreases and becomes less dense that is the reason why that hot air rises and cooler air sinks. Same with the concept of hot-air balloons and heat moving up on the attic.

each of the 46 original chromosomes splits into two daughter chromosomes, so there are two sets of 46 daughter chromosomes that end up in each cell. human cells have 46 chromosomes. each chromosome consists of a pair of identical chromatids attached together by a structure called a centromere.

a. by using fur or clothes to trap heat energy near the body