what is the reason for having life on earth?
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Answer:
What makes life on the earth possible?
Earth's amazing gaseous atmosphere is responsible for making life possible on this, the third planet from the Sun. Our atmosphere contains water vapor which helps to moderate our daily temperatures. Our atmosphere contains 21% oxygen, which is necessary for us to breathe, 78% nitrogen HOPE ITS HELPS
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Answer:
All living things on earth have adapted to our atmosphere, which means all living things need our mix of atmospheric gases. Life elsewhere would be specifically adapted to their own conditions. Water is a really important ingredient to sustain the kind of life we know on Earth.
We really don’t know if life only exists on Earth! We do know that life as we understand it requires very special conditions to exist. In fact, many scientists believe that these conditions exist elsewhere and offer the possibility for life beyond just our Earth. These may be very simple organisms such as bacteria or even more complex life such as plants and animals. All living things need some sort of food, water, the right atmosphere and temperature. Humans for example, need to breathe in oxygen and can survive in temperatures that aren’t extreme hot or cold. Even the strength of gravity determines the form of our bodies such as our bones and muscle strength. Other planets don’t have exactly the same conditions as Earth so life would be somewhat different there. For example, these places may have a different atmosphere so there wouldn’t be the right amount of oxygen for us to breathe. All living things on earth have adapted to our atmosphere, which means all living things need our mix of atmospheric gases. Life elsewhere would be specifically adapted to their own conditions.
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