People need to use renewable energy so we don't deplete the Earths resources. Renewable energy is energy that comes from resources that can replenish itself. Examples of such resources include wind, and sunlight.
the energy decreases when you use it and to increase energy you need to rest or sleep.
use geothermal energy when you need electricity or radiant light.
You wont need any energy but, you can still use a rocket.
Potential energy because you use it only when you need it
the energy decreases when you use it and to increase energy you need to rest or sleep.
because they use the energy to build things
That sounds as if you want to stop using energy. That's not possible - we need energy to survive. We (humans) can reduce our use of energy, and we can try to reduce the environmental impact of the energy we do use.
This energy comes from the molecule ATP,which stores energy in a form that cells can use
We don't always need the energy in the form in which it appears. For example, we humans can't directly use solar energy. Not even the plants use it directly - they need to transform it first.
Plants use the energy from sunlight to carry out photosynthesis.
It's called photosynthesis.
We store energy in our bodies to use it. Every movement in our body, including simple things like raising our hands require energy. Without energy, we would not be able to do anything. In order to make it more 'convenient', without having to consume food or drinks when we need energy, we store energy in our bodies so that we can use it when we need it.