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3 years ago

HELP!!

Geography

1 answer:

Fiesta28 [93]3 years ago

6 0

If you want help u should give more pts but.... the answer here is D <span>economic disputes
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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.

6 0

2 years ago

9. Which of the following is an example of folk culture?

Step2247 [10]

Answer:

Option C. Homes made out of materials found in their environment is the only correct one.

Explanation:

Options A, B and D are not correct as these are the examples of modern (popular) culture.

C is correct because it tells about some original customs that have been existing in a certain area for a longer period time and has a large tradition.

5 0

2 years ago

Read 2 more answers

Match the region with its description.

maksim [4K]

1. Political
2.Cultural
3.Economic
4.Climate
5.Physical

7 0

2 years ago

Read 2 more answers

AT THIS POINT IF YOU ANSWER 2 OF THESES QUESTIONS RIGHT I WILL I PROMISE I WILL GIVE YOU BRAINLY

hichkok12 [17]

All the phase changes involve transfer of energy

gravity affects the water cycle because it pulls denser water down and less dense air up. it also causes precipitation to fall from clouds. sunlight provides energy for the water cycle

8 0

2 years ago

These areas are created when land erosion and a high water table have allowed some of the water to percolate to the surface.

Licemer1 [7]

The appropriate response is Oasis. It is shaped from underground streams or aquifers, for example, an artesian aquifer, where water can achieve the surface normally by weight or by man-made wells. Periodic brief rainstorms give underground water to manage common desert gardens, for example, the Tuat. Substrata of impermeable shake and stone can trap water and hold it in pockets, or on long blaming subsurface edges or volcanic barriers water can gather and permeate to the surface.

3 0

2 years ago