Simplistically, if our atmosphere contained only oxygen, then any tiny spark or flame would be enough to set anything flammable ablaze.
More realistically, plants need carbon dioxide, and nitrogen is needed to make proteins, an essential part of all life as we know it.
Yes, without the moon live as we know it would not exist on earth.
Life on Earth uses DNA. But simply b/c that's ALL we know doesn't mean that it's all that exists.
Other than Earth, no planets have been confirmed to be habitable. We do know of planets in other star systems upon which liquid water could theoretically exist but we can't measure the composition of the planets atmospheres therefore we can't know for certain whether or not they are habitable.
The largest animal to exist on planet earth was the blue whale, but know they are starting to go and there is the dinosaur, Hope this was what you were expecting
They actually had a planet called Orpheus. I know that because we watched a video in my science class about it and how it crashed into Earth and became part of Earth.
Simplistically, if our atmosphere contained only oxygen, then any tiny spark or flame would be enough to set anything flammable ablaze. More realistically, plants need carbon dioxide, and nitrogen is needed to make proteins, an essential part of all life as we know it.
Simplistically, if our atmosphere contained only oxygen, then any tiny spark or flame would be enough to set anything flammable ablaze. More realistically, plants need carbon dioxide, and nitrogen is needed to make proteins, an essential part of all life as we know it.
Simplistically, if our atmosphere contained only oxygen, then any tiny spark or flame would be enough to set anything flammable ablaze. More realistically, plants need carbon dioxide, and nitrogen is needed to make proteins, an essential part of all life as we know it.
because we don't actually know if ghosts exist on earth or not if they do they could have died there and is now living there but if they don't well its just people tricking you.
Life AS WE KNOW IT would not exist.
Simplistically, if our atmosphere contained only oxygen, then any tiny spark or flame would be enough to set anything flammable ablaze. More realistically, plants need carbon dioxide, and nitrogen is needed to make proteins, an essential part of all life as we know it.
well we don't actually know there could be a planet like earth that hasn't been discovered yet so their might Be
No, they didn't exist.
Life as we know it would not exist.
Yes, without the moon live as we know it would not exist on earth.
Because earth has the ideal conditions for biological life, as we know; it to exist
No. Water vapor in the atmosphere is needed for precipitation, without which life could not exist on land. The photosynthesis in planets depends on atmospheric carbon dioxide. Plants also depend on nitrogen compounds derived from our atmosphere's nitrogen via lightning and nitrogen fixing bacteria. Carbon dioxide, methane, and water vapor are also important greenhouse gasses, without which Earth would be too cold to sustain life.