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3 years ago

What is the difference between a crater and a caldera?

Geography

2 answers:

natita [175]3 years ago

7 0

Answer:

The answer would be b

Explanation:

Craters are formed by the outward explosion of rocks and other materials from a volcano. Calderas are formed by the inward collapse of a volcano's magma chamber. Craters are usually much smaller features than calderas, and calderas are sometimes considered giant craters.

mario62 [17]3 years ago

5 0

<h2>Answer:</h2>

C) Craters are formed by ejecting material during volcanic explosions while calderas are formed from inward collapse of volcano tops during explosive eruptions.

<h2>Explanation:</h2>

Calderas form when the volcanic eruption or the eruption of lava creates a huge empty magmatic chamber below the surface of the earth which later form a depression due to collapsing back into the chamber.

Calderas are not visible with a naked eye; they can only be seen on images taken from out of space. An example of the gigantic caldera is Yellowstone National Park. Craters, however, results from volcanic eruptions which cause vents were magma and other material escapes to form a cone shape. An example is Mt. St Helen.

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A hurricane has been classified as a category 3 hurricane. Which of the following is NOT true?

Elina [12.6K]

The hurricane has winds of 200 km/h is not a true statement from the following statements which is given above.

Answer: Option D

<u>Explanation:</u>

Hurricane which are normally formed over the water has several categories and the hurricane of category 3 is a dangerous hurricane which is a bad storm and can damage well built houses.

This can also result in the uprooting of the trees and can also lead to the blocking of the roads and the wind in this category of hurricane varies from 178-208 km/h which can cause damage at a very high rate.

8 0

4 years ago

During

bearhunter [10]

Answer:

A. increased; Great Migration

Explanation:

When the migration began, 90 percent of all African-Americans were living in the South. By the time it was over, in the 1970s, 47 percent of all African-Americans were living in the North and West. A rural people had become urban, and a Southern people had spread themselves all over the nation.

4 0

3 years ago

Most people in Mexico live in

tekilochka [14]

The answer is B ..........

4 0

3 years ago

Find an equation for the perpendicular bisector of the line segment whose endpoints

zzz [600]

Answer:

y= -7/2x-26/2 or y= -7/2x-13

Explanation:

To solve this question you need all of these formulas:

gradient: $\frac{y2-y1}{x2-x1}$ , Point-Slope $y-y1=m(x-x1)$ ,

perpendicular m $(m1)x(m2)=-1$ , Midpoint $(\frac{x1+x2}{2}$ , $\frac{y1+y2}{2} )$

and equation of a line $y=mx+c$

where m stands for gradient

First things first.

To start you have to know the data of the line that includes the two endpoints, so you calculate its gradient (m) of this line with the gradient fromula: $m=\frac{-4-(-8)}{5-(-9)}$ , which equals 4/14 or 2/7

(It can also be called rise/run) (Remember the rule of signs where - and - equal +)

with that information you can proceed with the point-slope or point-gradient formula, so you plug the values: y-(-8) = 2/7 (x-(-9)), which results in y+8=2/7(x+9) and then y+8=2/7x+18/7.

To finish the equation you move eight to the other side. To simplify things you can change it into a fraction as I did, and remember to change signs.

y=2/7x+18/7 -8 -> y=2/7x+18/7-56/7 . This gives us the number of y=2/7x-38/7, which is the equation of the first line.

Now to know the gradient of the second line you apply the formula of perpendicular bisector where m1 x m2 = -1. We know m1 (gradient of the first line) is 2/7, so m2 = $\frac{-1}{2/7}$ = -7/2. m2 is therefore -7/2

Now you have to know the midpoint between the two endpoints, which will act as the start point of the perpendicular bisector

M (midpoint) = $(\frac{-9+5}{2} ,$ $\frac{8+(-4)}{2} )$ , which give us the coordinates of (-2, -6)

(remember, x coordinate is always first)

with this point we can apply again the point-slope formula to know the equation of the line:

y-(-6)=-7/2(x-(-2)) -> y+6=-7/2(x+2) -> y+6=-7/2x - 14/2

Move the 6 to isolate the y

y=-7/2x -14/2 - 12/2

which equals y= -7/2x -26/2

You can check the results in this page: GraphPlotter

https://www.transum.org/Maths/Activity/Graph/Desmos.asp

To make sure the answer is correct.

Hope it helps :)

8 0

2 years ago

Define and describe the human rights violation that you have chosen

zmey [24]

Which right did you choose?

5 0

3 years ago