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Earth Science : Recent Questions and Answers (Page 15)

Find answers to your questions about Earth Science or help others by answering their Earth Science questions.

Could saltwater be useful for greening deserts and sequestering CO2?

Desert greening is the conversion of deserts into moister environments with more vegetation. This could be used to combat desertification and (by sequestering CO2) climate change, and...

Asked on 03/14/2021

2 answer

Has Earth's geological activity calmed down in the past 250 million years?

In the past, the Earth's ecosystem has experienced catastrophic mass extinctions as a result of large-scale volcanic eruptions. One example is the event known as the "Great Dying", 252 million...

Asked on 03/13/2021 by Peter - Reinstate Monica

1 answer

Can we define "drainage density" for a soil column (point-scale)?

From what I read all over the web and articles, drainage density is a parameter that is defined for a catchment. I want to use a hydrological model to simulate...

Asked on 03/11/2021

1 answer

Do clouds always move?

Can a cloud ever be stationary with respect to the ground surface? For some reason (experience, logic?) it seems to me such case is not possible. I read that ...

Asked on 03/11/2021

0 answer

SC7 and SC10 Lithology Classifications

I am looking for the full names of the lithology classifications SC7 and SC10. According to the FAO's guidelines for soil description SC3 e.g. refers to silt-,...

Asked on 03/04/2021 by Chr

0 answer

Is there scientific consensus on the existence of the iris effect

Question: Is there scientific consensus on the existence of the Iris Effect and whether it is a positive or negative feedback mechanism? If so, can you...

Asked on 03/02/2021 by J. Fregin

0 answer

Cleavage of minerals

What is the difference between 3-dimensional cleavage and cubic cleavage? I think, they are the same, but I am not sure about if I was right or not....

Asked on 03/02/2021 by Kiroloes Amir

1 answer

Why is Olympus Mons the largest volcano in the whole solar system?

Why is it that the volcanoes found in the Tharsis Montes region near the Martian equator, (one of which is Olympus Mons) so much larger than those found on Earth....

Asked on 02/28/2021

3 answer

How do scientists confirm iron core at the centre of the earth?

How do scientists confirm iron core at the centre of the earth? We know scientists couldn’t yet drill to the core of our planet earth. Yet we know they confirmed...

Asked on 02/28/2021

1 answer

Why did Hurricane Harvey have so much lightning associated with it?

Hurricane Harvey (Category 4 hurricane, in August 2017) was a prodigious lightning producer when it hit Houston/SE Texas. But I thought hurricanes don't have much lightning (with the eyewall being...

Asked on 02/27/2021

1 answer

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