1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Stolb23 [73]
3 years ago
8

What changes were necessary in Earth’s atmosphere to allow complex organisms to evolve?

Social Studies
2 answers:
chubhunter [2.5K]3 years ago
7 0

Answer:

<h2>It had to develop major quantity of oxygen and ozone.</h2>

Explanation:

At the beginning, Earth's atmosphere was constituted by methane, ammonia, water vapour and neon. So, at that time, the absence of ozone and major quantity of oxygen didn't allow to create complex organisms.

Inessa05 [86]3 years ago
4 0
Hey there!

The changes that were (necessary) in the Earth's atmosphere to allow complex organisms to evolve was a collision from above such as a meteor and an increase in volcanic activity.

Your correct answer  . . .

\boxed{\boxed{A \ collision \ from \ above \ such \ as }}  . . . 

\boxed{\boxed{a \ meteor \ and \ an \ increase \ in \ volcanic  \ activity.}}

Hope this helps.
~Jurgen
You might be interested in
Hans selye's definition of stress is considered a response-based definition because it conceptualizes stress chiefly in terms of
Ghella [55]
<span>Hans Selye's definition of stress is considered a response-based definition because it conceptualizes stress chiefly in terms of the body's physiological reaction to any demand that is placed on it. Essentially Seyle's sees stress as stemming from various physiological conditions.</span>
4 0
4 years ago
Why is total house spending higher then total senate spending
Zanzabum
The house of representatives is based on population, meaning that the more people in a state, the more representatives of the house that state has, the Senate only has two senators per each state meaning that have like 300 less members
7 0
3 years ago
Legal entity between partnership and joint stock company<br>​
pentagon [3]

Answer:

A Joint Stock Company is a separate legal entity. Any shareholder of a company can enter into a contract with the company

Explanation:

this the best answer i can give for this

sorry if this confused you or if im wrong

3 0
3 years ago
Complete each sentence by choosing johnson or webster or both . according to , dictionaries help purify the language and stop la
notka56 [123]
<span>In completing the statement at hand, it can be claimed that according to the Webster dictionaries, it is found that the study and progression of language is something that is constantly altering and allows individuals to better express and understand one another.</span>
5 0
4 years ago
The _____ presents subjects with a series of ambiguous pictures and asks them to develop a spontaneous story for each picture, a
Masteriza [31]

Answer:

b. TAT

Explanation:

TAT means The Thematic Apperception Test. This test was developed in 1930s by Henry A. Murray who was a psychologist and Christina D. Morgan, a psychoanalyst. And it can described as a projective technique, that is used to make diagnostic assessment.

It should be understood that, the TAT presents subjects with a series of ambiguous pictures and instructs them to develop a spontaneous story for each picture, assuming they will project their own needs into the story.

In conclusion, it is a tool that is known  to measure the individual needs of different people using McClelland's categories, a theory that was proposed by David McClelland.

5 0
3 years ago
Other questions:
  • Which organization did world powers create immediately after World War II?
    10·2 answers
  • who studied egyptianhieroglyphics for many years and cracked the meaning of this ancient picture writting
    10·1 answer
  • Saddam Hussein was a real-life example of a/an .
    14·2 answers
  • Lisa has a very stormy relationship with her boyfriend. although she often experiences intense love for him, today she perceives
    7·1 answer
  • If the police arrive at larry���s office without probable cause or a warrant and demand to search the premises, which amendment
    11·1 answer
  • What are czech republic's economic activities
    8·1 answer
  • According to Roman Catholic tradition, Peter was the first ____ of Rome
    13·1 answer
  • Although merchants were not socially valued during the Han dynasty, what made them rich during this time? A. Daoism B. the Silk
    10·2 answers
  • Which cause and effect diagram bestillustrates one main effect of informed
    7·1 answer
  • Whites set up the apartheid system in what country?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!