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ankoles [38]
3 years ago
7

About 4 billion years ago, oceans were able to form because _____. cyanobacteria appeared volcanic outgassing helped protect the

surface from meteorite bombardment the moon's gravitation cooled the earth the Sun's radiation declined
Geography
2 answers:
Delicious77 [7]3 years ago
5 0

the answer is "volcanic out-gassing helped protect the surface from meteorite bombardment "

Alex73 [517]3 years ago
4 0
Because Cyanobacteria appeared

Cyanobacteria's excrement formed a lot of oxygen in the atmosphere which make the earth temperature cold

This allow a liquid water to formed on the surface ( because if the temperature is too high, the water will evaporate) and eventually formed oceans
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Many cities in the Megalopolis region, such as Baltimore, Washington, and Philadelphia, are located on the Fall Line. Why were s
guapka [62]

Answer:

As explained below.

Explanation:

  • A fall line is an upland region of the coastal plains meets and the term states that lots of rivers fall from this Piedmont to the coastal plain making rapids with waterfalls.  
  • These falls are important as for the settlement as they block the ocean going ships from entering in any further upstream and also provided water power to run the region industries.
4 0
3 years ago
The coriolis effect ______ in magnitude with decreasing wind speed, and _______ in magnitude as you move towards the equator.
Nastasia [14]

The Coriolis effect decreases in magnitude with decreasing wind speed and decreases in magnitude as you move towards the equator.

The Coriolis force increases with increasing latitude and increasing wind speed. It only affects wind direction, not wind speed.

The Coriolis force increases with increasing wind speed. The Coriolis force acts perpendicular to the direction of travel (to the right of the wind in the northern hemisphere), so it cannot change wind speed.

The Coriolis effect is caused by the rotation of the Earth. In the northern hemisphere, moving objects tend to bend to the right of their intended path. In the Southern Hemisphere, moving objects tend to bend to the left of their intended path. The Coriolis effect tends to increase or decrease the speed of moving objects.

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3 0
2 years ago
During a meeting with a teacher about what might be on a test, you will not need to ask specific questions about content. Please
jasenka [17]

Answer:

false

Explanation:

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have a wonderfull day

6 0
3 years ago
Read 2 more answers
Despite the good that NAFTA is meant to accomplish, why do you think that some Americans disapprove of it?
Lisa [10]
Because many American Conservatives believe that NAFTA has leeched our labour force and fed "American Jobs" to the Mexican economy. Many NAFTA skeptics cite the loss of U.S. manufacturing jobs as a reason to criticize NAFTA and to be wary of future trade deals. According to the CFR, the U.S. auto sector lost roughly 350,000 jobs between 1994 and 2016. Many of those jobs were taken up by workers in Mexico, where the auto sector added over 400,000 jobs in the same period.

Besides that (the main and largest reason), the only other reasons are that NAFTA hurt the economic prospects of Mexican small farmers and small business owners, and that NAFTA suppressed wages for non-college-educated workers in the U.S.
6 0
3 years ago
anorthosite represents the oldest rock type found on the moon and is unique because it is primarily composed of a single mineral
mixas84 [53]

Anorthosites, almost entirely made of plagioclase feldspar, are the Moon's earliest rocks. They appear to have developed when feldspar crystallised and floated to the top of the Moon's early magma ocean.

Anorthosite is an intrusive igneous rock made primarily of calcium-rich plagioclase feldspar. All anorthosites found on Earth are coarse crystals, but some Moon samples are finely crystalline. It is almost entirely composed of plagioclase feldspar, a standard, light-weight, light-coloured mineral on Earth. It is an igneous rock that cools and solidifies from hot melting material. This mineral floated to the surface and created anorthosite. Anorthosite is a significant rock type on the Moon's surface, accounting for most of the highlands and crust. This sample, recovered by Apollo 16 astronauts, has been proven to be 4.19 billion years old.

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3 0
2 years ago
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