That's because we need energy to get just about anything done. Also, because there are not many energy sources NOT related to the sunlight we receive.
the sun
the sun
sun is the energy source . We know that the primary produsers are plants, the source of photosynthesis is sun . Photosynthesis is giving food and energy to do all activities. Because sun is very very important to our planet earth.
The energy from the Sun, solar energy drives all the process important to life on Earth.
Life on Earth gets its energy from the Sun, which produces the energy through nuclear fusion.
The primary energy source for life on Earth is the sun. Through the process of photosynthesis, plants convert sunlight into chemical energy that is then used by plants and ultimately other organisms for survival and reproduction.
yes
The Earth has two sources of energy, the sun's radiation and heat from inside the Earth. The sun is most important and life could hardly exist except at a very primitive level without it.
the sun is the main source of energy of the earth the sun is the main source of energy of the earth the sun is the main source of energy of the earth
The Sun is important because it gives light to Earth and keeps living things warm. The Sun also provides the energy needed for plants to produce food. Without the Sun, there would be no life on Earth.
The primary is the sun
Energy from the sun to Earth travels as electromagnetic energy, or light energy.