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lilavasa [31]
2 years ago
15

This passage is mainly about

Geography
1 answer:
N76 [4]2 years ago
3 0

Answer:

This passage is mainly about asteroids striking Earth.

Explanation:

The presented passage is mostly focusing on asteroids striking Earth. It is something that has been happening since Earth has formed, and it will happen in the future as well. The vast majority of the asteroids don't really have any impact on Earth, but some have an impact that is devastating and long-lasting.

In the earlier stages of Earth, many more asteroids were falling on the surface, and the main reason for that has been the lack of atmosphere or a very thin atmosphere. As the atmosphere started to take shape and became similar to what is nowadays, the asteroid impacts decreased significantly because the atmosphere was managing to burn them and break them apart. This is not possible with all asteroids though, as some are so big and fall under an angle where the atmosphere doesn't really have any impact on them so when they fall on the surface they are able to cause sudden climatic changes, mass devastation, and mass extinction of species. Such an asteroid will be in a direction to hit Earth in the future for sure, the question remains will humans with their technology be able to prevent an impact or not.

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When magma solidifies underground, the resulting landform is classified as _______.
galina1969 [7]

Answer:

1. When magma solidifies underground, the resulting landform is classified as <u><em>Intrusive rocks. </em></u>

2. Lava cooling on the surface of the earth forms <u><em>Extrusive igneous rocks </em></u> features.

3. A very large mineral is more likely to be found in <u><em>Igneous</em></u> rock.

4. <u><em>Lava</em></u> is magma that forms in long, horizontal shafts in the earth’s crust.

5. Lava with high basalt content forms <u><em>high ferromagnetism</em></u> through multiple eruptions.

Explanation:

1. Intrusive rock is formed when magma penetrates existing rock, crystallizes and solidifies underground to form intrusions. Intrusive rock forms within Earth's crust from the crystallization of magma.

2. Extrusive igneous rocks form when magma reaches the Earth's surface of a volcano and cools quickly. Most extrusive rocks have small crystals.

3. Igneous rock or magmatic<em> rock</em>, is one of the 3 main rock types. The other 2 are called <em>sedimentary</em> and<em> metamorphic</em>. Igneous rock is formed through the cooling and solidification of magma or lava.

4. Lava is molten rock generated by geothermal energy and expelled through fractures in planetary crust or in an eruption, usually at temperatures from 1.292 to 2.192 °F.  

5. Mafic or basaltic lavas are best known by their <em>high ferromagnesian content. </em>

Eruptions associated with basaltic lava usually are <em>not explosive</em> due to the low silica and gas content.  

Because of the low viscosity, basaltic lava flows spread out, forming extensive layers. They may build up to form a large shield volcano.  

3 0
3 years ago
Read 2 more answers
How is hydrofracking used to obtain natural gas from rocks deep in the earth?
Shtirlitz [24]
HYDRAULIC fracturing, or fracking, is a drilling method used to extract petroleum (oil) or natural gas from deep in the earth. In the fracking process, cracks in and below the earth surface are opened and widened by injecting water, chemicals, and sand at high pressure. Hope this helps you.
8 0
2 years ago
Which 2 countries make up Hispaniola?
natka813 [3]

Answer:

Haiti and the Dominican Republic

Explanation:

3 0
3 years ago
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What type of rock are fossils usually found in? Igneous basalt rock Igneous granite rock Metamorphic rock Sedimentary rock
aleksandrvk [35]

Answer: Sedimentary rock

Explanation:

From google (There are three main types of rock: igneous rock, metamorphic rock, and sedimentary rock. Almost all fossils are preserved in sedimentary rock. Organisms that live in topographically low places (such as lakes or ocean basins) have the best chance of being preserved.)

5 0
2 years ago
What is the scientific term for rocks made of lava?
Hunter-Best [27]

Answer:

Volcanic rock (often shortened to volcanics in scientific contexts) is a rock formed from lava erupted from a volcano. ... Volcanic rocks and sediment that form from magma erupted into the air are called "volcaniclastics," and these are technically sedimentary rocks.

Explanation:

7 0
2 years ago
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