The statement is - C. Volcanic eruptions have prevented several mass extinctions by cooling Earth's climate.
The volcanoes and their activity have resulted in numerous positives on the planet Earth, being very beneficial for the life as a whole and eventually for the human kind.
The volcanoes though also had some very negative influences, and despite being one of the factors that enabled the life on Earth, they never prevented a mass extinction on it, instead they are responsibly for some of the mass extinctions. The biggest mass extinction dubbed as the ''Great dying'' has been caused by the activity of a super-volcano that existed in what is now Siberia. It managed to wipe out almost all life on the planet. Also, when the asteroid collided with the Earth around 66 million years ago, the volcanoes too contributed largely to the mass extinction that wiped out the dinosaurs. Even in more recent geologic times, the Toba volcano almost wiped the humans from the face of the Earth.
The statement is - C. Volcanic eruptions have prevented several mass extinctions by cooling Earth's climate.
The volcanoes and their activity have resulted in numerous positives on the planet Earth, being very beneficial for the life as a whole and eventually for the human kind.
The volcanoes though also had some very negative influences, and despite being one of the factors that enabled the life on Earth, they never prevented a mass extinction on it, instead they are responsibly for some of the mass extinctions. The biggest mass extinction dubbed as the ''Great dying'' has been caused by the activity of a super-volcano that existed in what is now Siberia. It managed to wipe out almost all life on the planet. Also, when the asteroid collided with the Earth around 66 million years ago, the volcanoes too contributed largely to the mass extinction that wiped out the dinosaurs. Even in more recent geologic times, the Toba volcano almost wiped the humans from the face of the Earth.
"Forests had been destroyed for miles and rivers had been blocked by debris. Clouds had even blocked out the sun in the entire state. It took years for the environment to recover."
"Forests had been destroyed for miles and rivers had been blocked by debris. Clouds had even blocked out the sun in the entire state. It took years for the environment to recover."
Explanation: The renown geologist Charles Lyell has a huge contribution in the field of geology, who brought into the concept of "Uniformitarianism" which depicts that the earth undergoes the same geological processes at a constant rate that means the processes that has taken place in the past will undergo now and in future too.
Due to this on-going tectonic activities, the earth experiences earthquakes and volcanic eruptions at different places at different time.
Explanation: The renown geologist Charles Lyell has a huge contribution in the field of geology, who brought into the concept of "Uniformitarianism" which depicts that the earth undergoes the same geological processes at a constant rate that means the processes that has taken place in the past will undergo now and in future too.
Due to this on-going tectonic activities, the earth experiences earthquakes and volcanic eruptions at different places at different time.
After looking at the cross sections in the photo you posted of the three bedrock outcrops, I can give you a correct answer to the question. The statement that will explain why the volcanic ask layers are good for correlating the ages in the three outcrops is that the ask was deposited over a large area when a volcano erupted in the past. You can see in the picture that there is fossils, you can see that there are not ask found between many of the layers of bedrock and the you can also see from the picture that it didn't occur over a long period of geologic times. This is why you can be sure that the 1st statement is the correct statement, by ruling out all the other choices. The correct choice is number 1.
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