Answer:
A- soil bacteria converts usable nitrogen into nitrogen gas
Exercising doesn't mean you have to spend hours in the gym. Exercises can be done at the comforts of your home too, and there's plenty of exercise available, especially for those who have less time to do so. Just like for example, waiting time. While you are waiting for your clothes in the washing machine to finish, you may use this time to do some basic exercises such as running in place, jumping jacks or carrying weights. It may only take a few minutes, but performing these exercises in less time is better than not doing it at all.
Organisms obtain energy from the foods
Answer:
the air above the water would cool down faster
