Answer:
Permafrost is ground that continuously remains below 0°C for two or more years, located on land or under the ocean. Permafrost does not have to be the first layer that is on the ground. It can be from an inch to several miles deep under the Earth's surface.
Explanation:
Answer:
Plants need water and sun to create their food source, glucose. When the plant was left in the closet it didn't have access to the sun. One of the requirements of life is that all living things need energy/have a metabolism. Without food the plant eventually died.
Answer:
it would not be able to multiply
Explanation:
Viruses lack the ability to replicate on their own, so if they don't invade the host cell and reprogram, they won't be able to multiply.
Answer:
2000 km/s
Explanation:
the formula for speed is speed=distance/time, this is the formula that should be used here. 50,000/25, which equals 2,000
