Answer:
B
Explanation:
When a mass of air is heated it becomes less dense. This is why a hot air balloon rises in the atmosphere. It is also the same reason why hot air rises and the moisture in it condenses to form clouds. The cooler less dense air mass moves downards (in some convection currents fashion) in to replace the hot rising air.
Once you make the hypothesis, you need to check if it's true. So your answer would be C!
Have a nice day! :)
The answer is B It must be testable.
Answer:
Two people with brown hair could have a child with blonde hair, but only if they are both heterozygous.
