Geothermal energy is the energy drawn from the earth (geo) by way of the hot rocks that are found there. It is created as a result of the tremendous heating caused by the fission of radioactive elements in the earth's core.
Nobody has even gotten close to directly examining the interior of the Earth. So there is disagreement among geophysicists as to how heated the Earth's core is. However, the speed at which earthquake waves, sometimes known as "seismic waves," move can reveal a lot to scientists about the composition of the Earth.
It is thought that the Earth's core temperature ranges between 5,000 to 7,000 degrees Celsius. That is far colder than the sun's inside, yet roughly as heated as the sun's surface.
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Answer:
A hydraulic conductivity of 7.6 ft/day converts to 2.3 m/day.
Explanation:
This problem can be solved as a simple rule of three, with the mathematical conversion from feet to m.
Each ft has 0.3048m. So how many m are there in 7.6ft?
1 ft - 0.3048m
7.6ft - x m


So
A hydraulic conductivity of 7.6 ft/day converts to 2.3 m/day.
The correct answer is - A. Devonian.
The Devonian is one of the seven periods of the Paleozoic Era. It lasted for 50 million years, from 410 million years ago until 360 million years ago. It is the period in which the first insects evolved, the first seeded plants, as well as the first land vertebrates. This period came after the Silurian period, and was followed by the Mississippian period.
The two closest terms are C. acculturation and assimilation.
Both terms refer to the process in which two cultures meet and interact and "borrow" some aspects of the other culture - the difference is that assimilation produces more similar culture.
In contrast appropriation is a one-way process: only one culture takes on the characteristics of another culture.
Answer:
C. better tools for agriculture
Explanation:
- Sumera were the first people, to migrate to Mesopotamia and created a great civilization along the 5500 million years they build the settlements along the river valleys. They had advanced levels of technology such as irrigation techniques.