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3 years ago

What two statements correctly describe the theory of tectonic plates

Geography

1 answer:

hram777 [196]3 years ago

3 0

Answer:

Plates interact at three types of plate boundaries: divergent, convergent and transform.

Most of the Earth's geologic activity takes place at plate boundaries.

Explanation:

I'm not sure please double check this might be incorrect

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Assume that the Moon is hit by about 25 million micrometeorite impacts each day (this number comes from observations of meteors

mestny [16]

Answer:

3.03 Billion Days or 8.30 Million years

Explanation:

Given,

No. of micrometeorite impacts per day on the Lunar surface = 25000000

Impacts needed to erase a footprint = 20

Area of footprint = 300 cm²

We know that surface area of the Moon = 37.93 Million Km² = $37.93\times 10^{16} cm^{2}$

To find: How long will it take to erase one footprint?

Using the above information,

No. of impacts per cm² per day is

$= \frac{25000000}{37.93\times 10^{16}}$

No. of impacts on area of a foot print (300 cm²) per day will be,

$= \frac{25000000}{37.93\times 10^{16}}\times 300$

$= 6.59\times 10^{-9}$

To erase the footprint there must be 20 impacts on the area of footprint.

Time taken for $6.59\times 10^{-9}$ impacts = 1 Day

Time taken for 1 impact is

$= \frac{1}{6.59\times 10^{-9}} days$

Hence, time taken for 20 impacts will be

$= \frac{1\times20}{6.59\times 10^{-9}} days$

$= 3.03 \times 10^{9} days$

$= \frac{3.03 \times 10^{9}}{365}years$

$= 8.30 \times 10^{6} years$

It would take around 3.03 Billion Days or 8.30 Million years for one of the footprints left by the Apollo astronauts to be erased.

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3 years ago

Analyzing core samples from around the Mid-Atlantic ridge, the seafloor further away from the ridge was much _________________ t

Paladinen [302]

Answer: In this way, as the plates move further apart new ocean lithosphere is formed at the ridge and the ocean basin gets wider. This process is known as “sea floor spreading” and results in a symmetrical alignment of the rocks of the ocean floor which get older with distance from the ridge crest.

Explanation:

hope that helps

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3 years ago

Listed following are statements that, based on our current theory of solar system formation, apply either to the formation of te

torisob [31]

Answer:

e.surfaces dramatically altered during the heavy bombardment

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4 years ago

How we can control the depletion of resources

Naddika [18.5K]

We can control resource depletion by rationing them and making thing that don't need or use so much resources.

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3 years ago

Imagine that you are a doctor who is studying the spread of disease in your country. How could you use new technologies in geogr

serious [3.7K]

Answer: You could use old documents to help you make new medicine.

Explanation:

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4 years ago

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