Geography, 09.09.2020 22:01 idcatall5

2. During Earth's very early history, our planet was whacked by meteorites large and small, and eventually grew to its current size. Earth probably went through a period in which it was molten from near the surface to its center.
Throughout its history, Earth has been hotter at its center than at its outer surface.
(a) In caves just below Earth's ground surface in continental crust, the temperature tends to be a constant
-15°C (-59°F). (That's why people use caves for wine storage.) The deepest mine on Earth is currently the Mponeg
gold mine just southwest of Johannesburg, South Africa, which reaches just over 4 km below the surface. At the
bottom of that mine, the rock temperature reaches 66°C (-151°F). Using the cave temperature to represent the
surface temperature of the crust at -0 km depth, what is the rate at which temperature changes in Earth between
O and 4 km-the near-surface geothermal gradient?
°C/km

Answers: 2

Show answers

Another question on Geography

Geography, 23.06.2019 08:30

Dose local topography and sea surface temp contribute to differences in climate between baeious localities

Answers: 1

Answer

Geography, 23.06.2019 15:10

Which of the following lists shows the events in the correct order? a.)the creation of the british raj, the sepoy rebellion, gandhi’s campaign of civil disobedience, the partitioning of indiab.) gandhi’s campaign of civil disobedience, the sepoy rebellion, the creation of the british raj, the partitioning of indiac.)the sepoy rebellion, the creation of the british raj, gandhi’s campaign of civil disobedience, the partitioning of indiad.)gandhi’s campaign of civil disobedience, the creation of the british raj, the partitioning of india, the sepoy rebellion

Answers: 1

Answer

Geography, 23.06.2019 18:30

Ascientist is explaining how background cosmic radiation gives evidence of the big bang theory. she says that radiation has been detected everywhere equally as heat in the universe and is increasing. this has been shown to be residual radiation from the big bang. what error did the scientist make?

Answers: 1

Answer

Geography, 23.06.2019 21:40

At first after world war ii, japan’s factories produced goods that were used by the japanese government poorly made toys and novelties high-quality cameras inexpensive motorcycles

Answers: 1

Answer

You know the right answer?

2. During Earth's very early history, our planet was whacked by meteorites large and small, and even...

Questions