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
snow_lady [41]
3 years ago
11

Please help, 100 points! Most scientists agree that life began on earth approximately 3.5 billion years ago. What would a scient

ist need to do in order to test this hypothesis and gather evidence?
A: Recreate the composition of the atmosphere and oceans on Earth as they were 4.5 billion years ago.
B: Travel to a similar planet or moon in its own early formation and recreate the chemical reactions which took place on Earth.
C: Gather the raw materials, such as inorganic compounds, on Earth 4.5 billion years ago and recreate the chemical reactions that could have taken place.
D: This is not a testable hypothesis since there is no way to travel back 4.5 billion years or to run the experiment for the next 4.5 billion years. (This one is obviously wrong)
Biology
2 answers:
mr Goodwill [35]3 years ago
8 0

Answer:

it is A I tried to work it out my best have a nice day God bless you

Bezzdna [24]3 years ago
3 0
I think the answer is A as well, I hope this answers your question
You might be interested in
How does global warming affect the spread of disease and the habitats of animals on earth
pychu [463]
Global warming affects the spread of animals because different areas will become suitable for different species, so they spread out. This can cause diseases to spread, as the animals may bring them with them. This can also happen in the opposite direction, where the climate change causes less habitats to be suitable for animals, so they become more sparse
4 0
3 years ago
Read 2 more answers
Earth's early atmosphere was primarily composed of
Paul [167]

Answer:

The correct answer is ''carbon dioxide, water vapor and nitrogen.''

Explanation:

About 4.5 billion years ago, Earth was a very geologically active planet. So many volcanic fumes formed the primitive atmosphere, which was mostly made up of water vapor, carbon dioxide, sulfur, and nitrogen. At this point, oxygen was barely present and the oceans did not yet exist. The primitive atmosphere is the one before the Precambrian, it was reductive, that is, it lacked free oxygen, and only had ammonia, methane and hydrogen, the high temperature of the atmosphere in its early stages facilitated the reaction of these gases to form organic compounds from which life may have emerged. UV rays passed, because ozone did not exist.

5 0
3 years ago
How many units in 150 ml acohol
Black_prince [1.1K]
150 ml= 0.0369 us liquid gallon
6 0
3 years ago
Why is cell division important for both unicellular and multicellular organisms? 2. why does cell division remain important to a
ss7ja [257]
1. the reason its so important is

4 0
3 years ago
2. Describe any Species Recovery Plan, environmental guidelines, or steps taken for recovery of the
ankoles [38]
What species are you referring to?
3 0
3 years ago
Other questions:
  • Which is an example of a behavioral adaptation? Birds migrating in the winter a ducks's webbed feet a polar bears thick fur a ga
    13·2 answers
  • What types of foods are the richest in proteins
    6·2 answers
  • Explain two ways in Which immunity is produced
    12·1 answer
  • What are the benefits of incinerators?
    15·1 answer
  • Can I get a list of all eras and one thing that lived during that era?
    6·1 answer
  • If two similar flashlights shine on a wall from the same distance, the spot on the wall becomes brighter. This is due to light w
    13·2 answers
  • Cichlids fish evolution, as seen in lake victoria in africa, is an example of ______ equilibrium.
    13·1 answer
  • What happens on the microscope as you adjust the coarse focus? What part of th<br> microscope moves?
    13·2 answers
  • 1 point
    11·2 answers
  • Which of the following is NOT true regarding the endocrine system?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!