Sunlight and water.
nitrogen, oxygen, and water are nonmetals in the atmosphere, and their cobinations are essential for life on earth
The greenhouse effect is essential to life on earth. The enhanced greenhouse effect is not. In fact if it is enhanced too quickly it can be harmful to life.
Carbon is essential to life. Life could not exist without it
Pagan
Water!
Pagan
No, carbon monoxide is not essential for life on earth. In fact, it is a poisonous gas that can be harmful to living organisms, including humans, when inhaled in high concentrations.
Oxygen, nitrogen, and yes, even carbon dioxide are essential to life on Earth (plants require carbon dioxide, in order to perform photosynthesis).
If water disappears from earth then all of life will also disappear. This is because water is essential for life.
If water disappears from earth then all of life will also disappear. This is because water is essential for life.
No. While the moon plays an essential role to life on Earth, it is not the source of it.
The greenhouse effect is essential for life on earth because organisms must be kept at a warm enough temperature to grow. Without the greenhouse effect organisms wouldn't be warm enough.