Physics
Physics, 06.05.2021 15:50, shygrl05

There are three types of rocks on Earth. Each rock type forms in a different way. Igneous rocks were the first rocks on Earth. They form from molten rock. Molten rock is rock that has turned to liquid because of extreme heat. Lava is the name for the molten rock that erupts from volcanoes. When molten rock is below the Earth’s surface, it’s called magma. When molten rock—either lava or magma—cools, it hardens into a solid. This forms igneous rocks. Some examples of igneous rocks are granite, obsidian and basalt. Much of Hawaii’s coast is covered in basalt. Waves break the basalt down over time, creating the black sand of some Hawaiian beaches. Which of the following is true about lava and magma?

A. Lava and magma are both types of molten rock.
B. Magma uses waves to break down lava over time.
C. When magma cools and hardens it becomes lava.
D. Magma is called lava when it’s below the Earth’s surface.

answer
Answers: 2

Other questions on the subject: Physics

image
Physics, 22.06.2019 05:50, charlesrogers38
There are two routes similar in terrain; however, one route has an incline of approximately 28 degrees, and you must decide on which route to take. what is the maximum road grade that your fully loaded ecv can climb?
Answers: 2
image
Physics, 22.06.2019 07:00, dsperez201938
We put a force of 50n on an object and the acceleration is 100 m/s². what is the mass of the object?
Answers: 1
image
Physics, 22.06.2019 07:00, lilpeepxliltracy
Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?
Answers: 1
image
Physics, 22.06.2019 10:00, nayellisoto15
Asap and show ! a 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.
Answers: 2
Do you know the correct answer?
There are three types of rocks on Earth. Each rock type forms in a different way. Igneous rocks were...

Questions in other subjects:

Konu
Chemistry, 07.05.2020 10:00
Konu
Mathematics, 07.05.2020 10:00