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LenKa [72]
3 years ago
6

During a hike in Utah's Zion National Park, you pick up a sedimentary rock sample. When you examine the sample with your hand le

ns, you see that the rock consists mainly of rounded glassy particles that appear to be quartz. To be sure, you conduct two basic tests. When you check for hardness, the rock easily scratches glass, which is what quartz would do. However, when you place a drop of acid on the sample, it fizzes. Explain how a rock that appears to be rich in quartz could effervesce with acid.
Geography
1 answer:
eduard3 years ago
8 0

Answer:

Quartz is not pure in this rock.

Explanation:

When quartz shows effervescence in contact with an acid, it means that it is not in its pure state, but rather related to other substances that may be cementing the quartz. This effectiveness is caused by substances that do not react like quartz, such as calcite.

In this case, we can conclude that in relation to the calcium-rich rock shown in the question above, the calcium is not pure, but it is likely to be related to calcite, or other material that does not react to acid.

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Endogenic( Earth's Internal Heat) and Exogenic processes: Complete the following concept map below by supplying the missing word
alexandr1967 [171]

Answer:

Weathering, mass wasting, erosion, and deposition--Endogenic process

Volcanic, tectonic, and isostatic processes---Endogenic process

Explanation:

Weathering, mass wasting, erosion, and deposition are the main exogenic processes that occurs outside the earth surface where as Endogenic process consist of volcanic, tectonic, and isostatic processes that occurs inside the earth. exogenic processes are responsible for the formation of different types of landscape while endogenic processes are responsible for the formation of most important mineral resources.

7 0
3 years ago
When new clay sediment is deposited on top of old beach material, it's known as
Makovka662 [10]
<span>When new clay sediment is deposited on top of old beach material, it's known as.C. transgression.This is because the clay would have to come from sea inundating the beach ie rising and depositing the clay on the old beach. The sea rising could be from say tectonic movement or from glaciers melting but before glacial rebound.</span>
4 0
3 years ago
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Several communities around mt. rainier are built on enormous old lahar deposits. what might people in these areas expect in an e
bogdanovich [222]
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7 0
3 years ago
State your claim Make sure your claim fully explains why you can see the moon during the daytime and night. Whey can we see the
astra-53 [7]

Answer:

The day moon is a product of the sunlight reflected on the satellite. Sometimes, we can see the moon during the daytime, because depending on the moon´s position, sunlight is reflected on the satellite, allowing us to see from the Earth during the day.

Explanation:

The moon is a dull satellite that has no light by itself. The only way we can see it is through the reflection of the sunlight on this body. This effect also depends on the moon´s position concerning the Earth and to the sun. It is a natural product of the rotation and translation movement of the Earth and the moon.

This effect is related to the moon phases: new, first quarter, full and third quarter. During the daytime, we can see the waxing and waning gibbous phases because the moon is placed in a way that sunlight reaches it and reflects its shape. When this effect occurs, we can see that the star and the satellite get more separated each day. The moon gets to hide in the skyline later than the sun. This is why sometimes we can see the moon during the evening or the day.

4 0
3 years ago
Describes the volume of void space in a rock, whereas ______ describes how easily fluid can flow through the rock.
tangare [24]

Answer:

Porosity.

Explanation:

Describes the volume of void space in a rock, whereas POROSITY describes how easily fluid can flow through the rock.

I hope it helps! Have a great day!

5 0
2 years ago
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