Answer:
20 years
Explanation:
He will observe Velma to be 20 years old.
factory farming is a major contributing to water and air pollution as well as deforestation
Family history, environmental changes, poverty, Second hand smoke and neglect
Answer:
“Some people are able to tolerate lactose throughout their lives, but others become more lactose intolerant as they age,” usually caused by your genes, she says. “Some people stop producing lactase, or produce less of it, as they reach adulthood and beyond.”
Explanation:
hope it helps you
Answer:
RADON GAS
Explanation:
This is the main source of indoor radon. It flows through the air, ground and surface water. It primarily finds it's way through the soil into buildings and into water supplies. Once it escapes from soil, it discharges from emission stacks into the air.
