Scientists believe that fallen debris from an asteroid impacted on dry soil and rock caused Earth to form. This is referred to as "The Big Bang Theory".
Based on the popular theory that the dinosaurs went extinct due to the impact of a large asteroid, scientists think that the asteroid caused large amounts of debris to fly into the atmosphere, blocking out the sun. This caused global temperatures to drop, thus freezing the plants. In addition, without the sun the plants could not carry on photosynthesis, which caused them to die.
Based on the popular theory that the dinosaurs went extinct due to the impact of a large asteroid, scientists think that the asteroid caused large amounts of debris to fly into the atmosphere, blocking out the sun. This caused global temperatures to drop, thus freezing the plants. In addition, without the sun the plants could not carry on photosynthesis, which caused them to die.
One type of catastrophic change that can cause a mass extinction is an asteroid impact. When a large asteroid collides with the Earth, it can release massive amounts of energy, cause widespread destruction, trigger tsunamis and wildfires, and create a global "impact winter" due to the release of dust and debris into the atmosphere. Such an event is believed to have caused the extinction of the dinosaurs 65 million years ago.
Briefly, the theory is that the mass extinction which included the loss of the dinosaurs at the end of the Cretaceous period was caused by the impact of a large asteroid.
An asteroid impact caused a mass extinction about 65 million years ago
craters
Scientists believe that fallen debris from an asteroid impacted on dry soil and rock caused Earth to form. This is referred to as "The Big Bang Theory".
They're called craters.
They're called craters.
They're called craters.
Based on the popular theory that the dinosaurs went extinct due to the impact of a large asteroid, scientists think that the asteroid caused large amounts of debris to fly into the atmosphere, blocking out the sun. This caused global temperatures to drop, thus freezing the plants. In addition, without the sun the plants could not carry on photosynthesis, which caused them to die.
Based on the popular theory that the dinosaurs went extinct due to the impact of a large asteroid, scientists think that the asteroid caused large amounts of debris to fly into the atmosphere, blocking out the sun. This caused global temperatures to drop, thus freezing the plants. In addition, without the sun the plants could not carry on photosynthesis, which caused them to die.
One type of catastrophic change that can cause a mass extinction is an asteroid impact. When a large asteroid collides with the Earth, it can release massive amounts of energy, cause widespread destruction, trigger tsunamis and wildfires, and create a global "impact winter" due to the release of dust and debris into the atmosphere. Such an event is believed to have caused the extinction of the dinosaurs 65 million years ago.
climate change and asteroid impact
Briefly, the theory is that the mass extinction which included the loss of the dinosaurs at the end of the Cretaceous period was caused by the impact of a large asteroid.
When an asteroid, comet, or meteorite collides with the Moon a crater is formed.
When the asteroid strikes Earth, it would throw up a great deal of debris into the atmosphere. The debris would block much of the sun's light, thus causing global temperatures to fall and decreasing the amount of plant life that could survive on Earth.