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2 years ago

What is one way that past events can contribute to current population levels?

1 answer:

3 0

I would say C the natural disaster causes a decline in the population which means the current population is less that what it could have been without the disaster

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Which statements best describe these two minerals? Select 3 choices.

Misha Larkins [42]

<h3><u>Answer:</u> </h3>

<u>The statements that best describe the minerals shown in the picture are as below:</u>

The "mineral on the right" formed from magma.

The "mineral on the left" has "larger crystals" than the mineral on the right.

The mineral on the left "cooled more slowly" than the mineral on the right.

<h3><u>Explanation:</u> </h3>

Magma is nothing but unerupted lava. Thus, the mineral on the right can be said to have formed from magma.

It is apparent that the mineral on the left has larger crystals than the mineral on the right.

The size of the crystals in the mineral on the left proves that the mineral on the left got more time to cool down which resulted in the formation of larger crystals.

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3 years ago

Read 2 more answers

1. What types of geological events or changes occur at divergent plate boundaries?

lorasvet [3.4K]

Thanks for the question,

The molten rock from the cloth exploded next to the hole, forming a new crust. Earthquakes occur in these areas, called distribution centers, are minimal. The Great Rift Valley in Africa, the Red Sea and the Gulf of Aden were all formed as a result of the movement of various plates.
The changing plate border is the area where two tectonic plates move to each other, often causing one plate to slide under the other. A collision of tectonic plates could lead to earthquakes, mountains, mountain construction, and other geological events.
When two tectonic plates slide past each other, the area where they meet is a rotating or lateral error. The San Andreas Fault is one of the best examples of lateral plate movement.
The air, water, and ice erode and shape the earth. Volcanic activity and earthquakes are changing the landscape in a dramatic and often violent way. And with more time, the movement of the plates of the earth also exposes the oceans and continents. (Check the image for evidence)

<h3>Hope it helps!</h3>

4 0

2 years ago

Describe radiometric dating and discuss three prerequisites that must be met in order to obtain a reliable radiometric date on a

Phantasy [73]

Answer:

Radiometric dating is usually defined as a method that helps in calculating the age of rock depending on the presence of radioactive isotopes and its rate of decay. In order to calculate this, the half-life of the isotope element must be known. This method is commonly used by geologists.

The conditions that are needed to fulfill in order to determine the age of a granitic batholith are as follows-

The rate at which these materials decay must be a constant

There should be an exact amount of both the parent as well as the daughter elements.

Since it is a batholith, so it has formed from the crystallization of magma at a certain depth. So, these granitic rocks must have remained within a closed system, right from the time of its formation.

The various methods of radiometric dating that can be used to date this granitic batholith are-

Uranium-lead dating- It is an efficient method to date the rocks that are of about 4 to 4.5 billion years.

Potassium-argon dating- It is also commonly used to date rocks that are about 4 billion years old.

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2 years ago

What happened in 1986 in ukrine?

d1i1m1o1n [39]

Ukraine, 1986, the worst nuclear accident in history happened in Chernobyl. A nuclear power plant exploded after the manager didn't do use proper safety precautions on a test. The fire from the explosion wouldn't stop, and the first responding firefighters died of acute radiation poisoning. The town was evacuated, as it is today. Today, some people consider the area around Chernobyl a natural reserve, as wildlife is growing it the radioactive area.

3 0

2 years ago

How can map scale differ from map to map?

Alinara [238K]

http://faculty.chemeketa.edu/afrank1/topo_maps/scale.htm use this website and i think this should fully explain it

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3 years ago