Definently A because you can rule all the others out if you look at map
Answer:
Explanation:
With less gravity, it is harder to keep your body strong. If the Earth's gravity is lost, all items held to the Earth's surface by gravity would float away. That includes the atmosphere, water, people, cars and animals. If an object were secured strongly to the Earth, it would probably remain attached depending on how strong it is.
The biosphere is all living things on earth
