Geography High School

The _______ era featured the longest periods with no life forms on earth.

Answers

Answer 1
The answer is - Archean.
The Precambrian is the eon before the Cambrian, when the so called life explosion occurred. The Precambrian eon is the earliest part of Earth's history, set before the current Phanerozoic eon. This eon accounts for about 88% of the history of the Earth. It is consisted of three eras, Hadean (no life), Archean (no life), and Proterozoic (life occurred). Both of the two earliest eras do not have life, but Archean is three times longer period than the Hadean, so Archean is the answer.
Answer 2

Answer:Precambrian

hope this helps :3

Related Questions

Helium was discovered on earth years after it had been discovered on the sun.
a. True
b. False

Answers

The statement is true.
As weird as it may sound, helium was indeed first discovered on the Sun, and after some time on Earth. The first evidence of helium was observed on August 18 1868, as a bright yellow line with a wavelength of 587.49 nanometers in the spectrum of the Sun's chromosphere. This line has been detected by a French astronomer by the name of Jules Janssen during a total solar eclipse in Gantur, India. 

Tornadoes although erratic are always characterized by ______ pressure.

Answers

the answer is low pressure

In three activities, how can I change my daily habits to help the ecosystem?

Answers

Instead of using a car, use a bike to help not pollute the air. Recycle water bottles. And use energy-efficient light-bulbs.
1. Save water as much as possible :

Hot water from the tap often requires running cold water until we can get hot water. In most cases instead of preserving the cold water in the container to use later, we let it run down the drain and get wasted. This happens in kitchen sinks, bathroom sinks and showers. On a daily basis, a lot of liters of water is wasted this way.

2.  Opt for reusable plastic bags :

Bags end up in landfills or causing litter in the environment. The danger of plastic bags is that most of them don't decompose. Animals and birds digest this material and die. Another environmental hazard from plastic bags is increased pollution in rivers, streams and oceans. Therefore, a reusable plastic bag reduces the frequency of buying and disposing, protecting the environment.

3.  Do not litter :

Packages whether it is food packaging or packages for other products have a “don't litter” or “throw in a rubbish bin” message and recycling sign. Regardless of that, there is rubbish all over. Avoid littering and using save and recommended manner of disposing of garbage is very important.

What are the 2 different types of igneous rock tectures?

Answers

There are many types of igneous rock textures. 

There is coarse grained texture

Fine grained texture

There is porphyritic texture

There are also a glass texture

The materials most commonly associated with earth failures are ______________. quartz clay minerals granite basalt

Answers

The answer is clay minerals 

hope this helped 

Which of climate would not be found in Africa

Answers

The answer is D) tundra

Hope this helps 
Hey, mate thanks for posting this on brainly.com

it is 

_________
 tundra

What moon orbits jupiter and has an icy surface that is tectonically reworked?

Answers

Enceladus.
Please mark as brainliest.

name at least two factors that affect weather patterns around the world

Answers

I would say air pressure also known as wind. And then also the evaporation from the oceans as it moves in and becomes rain. That’s what I would say at least hope this helped good luck!

How does Uranus’s axial tilt affect it’s seasons

Answers

The North and south mostly only have the seasons.

Most Middle East countries are highly dependent on food from abroad

Answers

The statement is true, most of the countries from the Middle East are heavily dependent on foreign food. Most of this region is desert or semi-desert, so agriculture is not an option. Only few parts manage to produce food, but that is nothing in the whole picture. So the lack of fertile soil and water in this part of the world, made it dependent on foreign food.

Which countries are known as the Baltic nations? Croatia Bosnia and Herzegovina Estonia Latvia Lithuania Romania

Answers

Croatia and Bosnia definitely and maybe Romania

Answer: Your answer is Croatia Estonia and Lithuania.

The diagram shows the global wind pattern in the lower atmosphere. What is the main factor that determines the global wind pattern? A) the directions of ocean currents B) uneven landforms on Earth’s surface C) Earth's yearly revolution round the Sun D) uneven heating of Earth's surface by the Sun

Answers

the answer is D) uneven heating of Earth's surface by the sun

Answer:

the answer is D) uneven heating of Earth's surface by the sun

Explanation:

Which ground rule for group work was broken in the following scenario? Jan came to the meeting just as Antonia and Finn were taking their seats. Finn and Jan presented the progress they had made on the project since the last meeting. Everyone engaged in the subsequent discussions, asking questions and offering ideas. Be punctual Meet deadlines Equal responsibility Respectful communication

Answers

The group work expectation that was broken was that they didn’t work as a group they worked in pairs.

Bedrock and sediment in a stream is most susceptible to erosion if it is:

Answers

Bedrock and sediment in a stream are most susceptible to erosion if it is located in a turbulent part of the river. 

Constant and fast movement of the water causes the sediments to be displaced and erosion occurs. 

ANSWER:

Bedrock and sediment is most susceptible to erosion if it is located in the turbulent part of the stream or the river.

EXPLANATION:

The turbulent part of the river is the one where the water velocity is high. This high water velocity carries away bedrock and sediment easily. The edge where the bedrock and sediment is located tends to be very steep. This steepness makes it easy for the high velocity of water to carry away the bedrock and sediment. This bedrock and sediment is also carried to greater distances because of the great speed of water.
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