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3 years ago

Write a paragraph to explain the pattern of volcanoes around the world.

1 answer:

8 0

They mostly follow the boundaries of tectonic plates, which are generally along the edges of continents. If you want to be even more specific, the "Ring of Fire" around the Pacific plate has the most.
Volcanoes form as a plate that is subducted (an oceanic plate) melts in the Benioff Zone, the lower part of the Subduction Zone, forming viscous andesitic magma. The magma is less dense than the surroundings and so rises to form magma reservoirs near the surface. This magma then forms a volcano, which may erupt when more of the plate melts. In the same place, when one plate is subducted beneath another, enormous vibrations are generated which causes an earthquake

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All except which of the following are possible results of increasing global temperatures

anyanavicka [17]

What are the answers?

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3 years ago

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When Carla solved for the height from the ground to the point where the ladder

Westkost [7]

Answer:

See explanation

Explanation:

Given

Represent the vertical angle with $\theta$

$\theta = 75$

The question has incomplete details because the length of the ladder is not given; neither is the distance between the ladder and the wall given.

See attachment for illustration

So, this solution will be based on assumptions.

Represent

- The height from ground to the top of the ladder with y

- The length of the ladder with L

- The distance between the ladder and the wall with x

Carla could solve for y in any of the following ways:

1. Tan formula

$tan \theta = \frac{opp}{adj}$

In this case:

$tan \theta = \frac{x}{y}$

Multiply both sides by y

$y * tan \theta = \frac{x}{y} * y$

$y * tan \theta = x$

Divide both sides by tan

$y = \frac{x}{tan \theta}$

$y = \frac{x}{tan 75}$

This can be used if the distance (x) between the ladder and the wall is known.

Assume x = 15

$y = \frac{15}{tan 75}$

$y = 4.02$

2. Cosine formula

$cos \theta = \frac{adj}{hyp}$

In this case:

$cos \theta = \frac{y}{L}$

Multiply both sides by L

$L * cos \theta = \frac{y}{L} * L$

$Lcos \theta = y$

$y = Lcos \theta$

$y = Lcos75$

This can be used if the length (L) of the ladder is known.

Assume L = 15

$y = 15 * cos75$

$y = 3.88$

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3 years ago

Sinkholes can form when _____.

agasfer [191]

Sinkholes can for when:
A. Rainwater containing carbon dioxide dissolves underground rock

Water in an underground rock or sediment layer is groundwater. Underground water can also erode and deposit material. Rainwater absorbs carbon dioxide (CO2) as it falls. The CO2 groundwater creates landforms by dissolving away rock.

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How do we define time globally?

astra-53 [7]

Answer:

longitude and latitude grids mark the globe for points of reference to the foot in degrees. then the globe is divided with alphabetical letters starting with a in greenwhich or 0000hours then moves around the globe from the 0 hour to the right until it reaches one hour before itself itself 2400 later so each zone is assigned a letter of the alphabet a-b-c and the hour is in conjunction with the letter so a=0 b=1 c=2 and so on until x is 2400

Explanation:

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3 years ago

Presents the greatest problem for Eastern Europe.

uysha [10]

Answer:

The present greatest problem for Eastern Europe is water quality.

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3 years ago