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PIT_PIT [208]
2 years ago
5

On early Earth, more than 4 billion years ago, environmental conditions were very different from those today because On early Ea

rth, more than 4 billion years ago, environmental conditions were very different from those today because early Earth's atmosphere had significant quantities of ozone. only early Earth was intensely bombarded by large rocks and ice from space. only early Earth had an oxidizing atmosphere. less ultraviolet radiation penetrated early Earth's atmosphere.
Geography
1 answer:
Mice21 [21]2 years ago
8 0

Answer:

Only early Earth was intensely bombarded by large rocks and ice from space.

Explanation:

Primitive Earth was hit several times by meteors, meteorites, rocks and ice from space. The impact of these bombings was very intense and it modified the entire structure and resources of the earth, besides harming life in general. The extinction of the dinosaurs was a result of this bombardment, for example, but there were many mass extinctions whenever one of these elements hit the planet. Another result was the modification of environmental conditions, which were very different from what we know today.

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Your sun orbits in a circular orbit around the center of the milky way galaxy. The radius of the orbit is 2.2x10^20m, and the an
Sliva [168]

Answer:

226 to 250 million years

Explanation:

  • Since the sun is about 26,000 light-years from the centre of the milky way the sun travels at a speed of about 782,000 km per hour in a circular orbit around the centre of the milky way.  
  • As sun itself is formed some 4.6 billion years ago the sun thus needs to speed up and this phenomenon is called as the cosmic year i.e is the amount of the time it will take the sun to reach the centre of the galaxy.

3 0
3 years ago
How do we solve the problem of urban sprawl?
SCORPION-xisa [38]
We can solve it bu:
1 Education:One of the biggest problems concerning urban sprawl is lack of education. ...
2 Community Action.
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3 Smart Growth.
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8 0
2 years ago
How do you define light year.
Black_prince [1.1K]

Answer:

A light-year is a unit of distance.

Explanation:

Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion km. More precisely, one light-year is equal to 9,500,000,000,000 kilometers.

5 0
3 years ago
Where are earthquakes and volcanos most likely to occur?
devlian [24]

Answer:

plate boundaries

Explanation:

Volcanoes and earthquakes are most likely to form along plate boundaries.

Earthquakes:

An earthquake is generated when two plates move relative to each other. The earthquake itself, is the movement felt on the surface caused by the movement of the tectonic plates at their boundaries. There are a few different types of plate boundaries, NOAA does a great job giving a brief description of each here:

http://oceanexplorer.noaa.gov/facts/plate-boundaries.html

6 0
2 years ago
Which country has the only tropical monsoon climate in Oceania?
pickupchik [31]

Answer:

Which country has the only tropical monsoon climate in Oceania?

Explanation:

The coastal area of northeastern Australia has a tropical wet climate and receives the highest annual rainfall in Australi

6 0
2 years ago
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