Answer:
541 million
Explanation:
Several times in the past 541 years, many, or even most, of the species on Earth became extinct in a geologically short time.
What is species?A species is both a unit of biodiversity and an organism's basic taxonomic classification in biology. They belong to a group of related creatures that can breed with one another and have similar traits.
The Paleozoic Era, is a significant period of geologic time that lasted from approximately 252 million years ago until 541 million years ago when the end-Permian extinction, the biggest extinction event in Earth's history, occurred. It was marked by an extraordinary diversification of marine life during the Cambrian explosion.
Therefore, 541 years ago, many, or even most, of the species on Earth became extinct in a geologically short time.
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Areas such as the San Joaquin Valley in California and Mexico City have experienced land subsidence because ____.
Answer:
Ground water was overpumped.
Explanation:
HELP THIS IS URGENT AND IT IS 15 POINTS AND BRAINLIEST TO THE CORRECT ANSWER
Answer:
It causes rock particles to stay together over time.
Explanation:
Mechanical weathering/physical weathering causes rocks to break apart into smaller pieces, so it obviously doesn't make rock particles stay together. Rather yet, it does the opposite.
Which agent contributes to erosion?
A) Sunlight
B) Shorelines
C) Clouds
D) Ice and glaciers
Answer:
Sunlight is the answer to the question
Answer:
ice and glaciers so answer D
Explanation:
A hunter-gatherer society begins to adopt an agricultural lifestyle. Which of the following will most likely happen?
A) Its effects on the environment will decrease.
B) Its population will increase significantly.
C) Its need for specialization and stratification will decrease.
Answer:
B) Its population will increase significantly.
Explanation:
The rest of them are incorrect, in-fact, the opposite would happen.
The were be no significant increase or decrease on the environment.
Also, the would need to specialize.
In 2011, piracy was an enormous problem off the coast of __________.
A.
Nigeria
B.
Kenya
C.
Somalia
D.
Sudan
Piracy was an enormous problem, in 2011 off the coast of Somalia. Thus, the correct answer is option C.
What is piracy?Piracy is defined as an act of robbery or criminal violence committed by attackers on a ship or boat against another ship or a coastal area, usually with the intention of taking valuable cargo and other items. Pirates are those who engage in piracy, and pirate ships are those utilized for piracy.
Pirate activity off the coast of Somalia takes place in the Somali Sea, Guardafui Channel, the Gulf of Aden, and other nearby locations as well as in Somali territorial seas. This activity has a long and problematic history, with views from various populations.
According to the International Maritime Bureau, an increase in attacks off the coast of Somalia caused worldwide piracy to reach an all-time high in the first quarter of 2011.
Therefore, option C is correct.
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which of the following should have the highest surface tension at a given temperature?
Question -
Which of the following should have the highest surface tension at a given temperature?
A. CH4
B. CF4
C. CCl4
D. CBr4
E. CI4
Explanation:
E. CI4
larger in size/larger molecule
I think this is your question but if not then Im sorry
Age Group
Population me
United States - 2012
100.
90-94
500
30-04
791
50-54
>>
20
2020
15) (7A) Using the population pyramids above, which is a true statement?
a) Angola has a higher life expectancy than the United States
b) The United States focus is on the education of the young
c) Angola's future worries are of it's elderly population
d) The United States current trends will lead to negative growth in the future.
Answer:
c) Angola's future worries are of it's elderly population
what's the capital of Texas?
Answer:
Austin
Explanation:
Austin,city, is the capital of Texas, U.S
Hope this helped you- have a good day bro cya)
Austin city can be regarded as the capital of Texas.
Austin city which is been known as the capital of Texas can be regarded as an inland city bordering the Hill Country region.
Texas serves a county in the United States which is very famous with landmark.
Therefore, Austin city can be regarded as the capital of Texas.
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Which cycle has been significantly altered by humans and is of great concern because of its implications for global warming?
Answer:
i think its the nitrogen cycle