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
borishaifa [10]
3 years ago
7

During which Eron did oxygen first appear in the atmosphere

Geography
1 answer:
Svetach [21]3 years ago
3 0

Answer:

2.3 billion years ago

Explanation:

hope it helped

You might be interested in
What are the two factors that influence climate ​
Vedmedyk [2.9K]
Elevation and ocean currents
6 0
3 years ago
The what is the one factor that can be manipulated by the experiment
goldfiish [28.3K]
Independent variable
5 0
3 years ago
The wind is described as geostrophic when:
Nadya [2.5K]

Answer:

B Winds blow in a straight line parallel to contour lines on a weather map

Explanation:

Geostrophic Wind -

It is the pattern of the wind , when the flow of wind is exactly parallel to the contour lines of the weather map .

It is a theoretical wind which results from the balance between the pressure gradient force and the Coriolis force .

Hence , the correct description for the Geostrophic Wind is option ( b ) .

4 0
3 years ago
Tropical regions are dominated by low atmospheric pressure, explain ​
julsineya [31]

Explanation:

Tropical regions are dominated by that because of their distance from the equator as the trade winds that blow across the earth from the equator impact the climate there. High pressure moves from equator and cools to create low pressure away about 15° away from equator. This means there will be more rain and humid climate

8 0
3 years ago
Which of the following will occur when moon is directy between sun and earth​
nika2105 [10]

Answer:

A solar eclipse.

Explanation:

When the Moon passes between Sun and Earth, the lunar shadow is seen as a solar eclipse on Earth.

Hope this helps!

7 0
3 years ago
Read 2 more answers
Other questions:
  • You have been assigned to complete a report for which you will need to find out much statistical information and view maps of di
    11·2 answers
  • In which countries do most of the population belong to the same ethnic group?. .A. Kenya B. Lesotho C. Nigeria D. Somalia E. Swa
    9·2 answers
  • What is the likely composition of Pluto?
    7·2 answers
  • If you are attempting to correlate rock strata and find that rock layer in different parts of the world have different sediment
    10·2 answers
  • Birth rates are lower in less-developed countries.
    6·1 answer
  • When a maritime tropical air mass is cooled by a colder ground surface the weather is often A: stays nearly the same but the sur
    12·1 answer
  • Other galaxies observed by astronomers are almost all redshifted. This means that most galaxies are moving away from our galaxy.
    10·2 answers
  • The practice of being married to only one person at a time but more than one
    10·1 answer
  • Permafrost occurs in the tundra. What is permafrost?
    12·2 answers
  • Which property makes a laccolith different from other types of plutons
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!