maintaining of a balance in nature.
atmosphere
Dark energy is important to earth in maintaining earth's orbit distance (centrifugal force, cDel.P) and the circulation force, cDelxP).
Buffers are important because they control the PH or "acidic" balance.
Drangonflies are important to life on earth because they eat the mosquitoes which no one likes.
water is important to the earth because it supports life.:)
Without the atmosphere, there would be no life on earth.
Solar energy drives all the processes important to life on Earth.
O3 or ozone is important to life on earth. It protects us from the harmful UV rays of the sun.
Oxygen is important as it the breathing sources. It also forms ozone which is vital for life on earth.
The energy from the Sun, solar energy drives all the process important to life on Earth.
NASA is important to life. It has all the necessary data for sustaining life.
The location of earth is very important. It maintains the perfect temperature.