Answer:
Two people with brown hair could have a child with blonde hair, but only if they are both heterozygous.
Answer: Here are some things you can do to help minimize some of these impacts. Don’t smoke inside, Walk or cycle as much as possible to get where you need to go, Keep green plants in the home as they help to clean the air, Choose a cleaner commute, Combine errands and reduce trips. These are some ways to help out. Hope this was helpful!
Explanation:
I think that the answer is 12 billion. So sorry if I am not right.
Sea caves are formed by erosion
Lava tubes are formed by pressure/flow
Limestone caves are formed by solution