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
ratelena [41]
3 years ago
15

How did earths atmosphere change during Precambrian time?

Biology
2 answers:
kifflom [539]3 years ago
8 0

the amount of oxygen is released

Nitella [24]3 years ago
8 0

The precambrian period was a time period that happened billions of years ago. Actually, 4.6 billion years, to be exact. The Earth started to form during this period. Layers of rock, elements of the land and waters, and many other things were developed during this time. The atmosphere had a mind of its own, per se, during this time period. It went through many different changes. The atmosphere went from being extremely cold and galactic to warming and having volcanoes, which allowed for an expansion of life forms.


You might be interested in
PLEASEEE I NEED HELP it’s brain pops worksheet Worksheet
Brut [27]

Answer:

first one is chromosome and second one is double helix

Explanation:

idek if that's what your asking lol hope you do good

5 0
3 years ago
Read 2 more answers
2. A compound is (circle the BEST answer)
Mnenie [13.5K]
A. One type of element but I could be wrong if not more than one type of Elena chemically bonded
8 0
3 years ago
What is the first activity to occur after fertilization happens in an angiosperm?
lora16 [44]
The seed develops as the ovule had already fertilize with the sperm so it cannot be C and D as those happen before fertilisation. A cannot be the answer as in an angiosperm, there is no egg, only ovules.
6 0
4 years ago
Which statement describes how technology has increased our information on Mars? The Curiosity rover found sulfur compound in roc
ivolga24 [154]

Answer:

Options (3)=> the Curiosity rover detected carbon in organic molecules.

Explanation:

The statement (1) and statement (3) are the most likely correct answers but since the question is likely to choose between one of the options(that is the options of 1 - 4), hence, there should be another options that will include options (1) and (3) in the question for us to be able to pick both options. But, since we are to pick one OPTION (3) WILL BE THE MOST CORRECT ANSWER.

So, you have been seeing " curiosity" all over in the question so what exactly is "curiosity''. Curiosity is a rover that is been use by the National Aeronautics and Space Administration(NASA) to enter the planet Mars since the year 2012.

THE REASON, OPTION (1) SHOULD NOT BE CONSIDERED IS THAT; Sulphur was said to be found in the John Klein rock and not its COMPOUND but sulphur itself.

6 0
3 years ago
1. Explain why high salt concentration can kill organisms.​
jonny [76]

Answer:

Explain why high salt concentration can kill organisms?

High salt concentration kills organisms because salts are naturally acidic and high concentration negatively alters the system of organisms

Explanation:

Organisms tends to survive at optimum pH rather than either low or high, high salt concentration affects the biological system of organism, hence; result in its death.

4 0
3 years ago
Other questions:
  • Which of these statements best sums up evolution?
    11·2 answers
  • An cells that are haploid (single set of chromosomes) undergo meiosis?
    14·1 answer
  • The bulk of the heart rests on this side of the body. Which side is it?
    13·1 answer
  • Give an example of how structure is related to function in living things<br> please!
    13·1 answer
  • What is carbohydrates monomer
    5·1 answer
  • Which of the following does not have to be included as part of a presciption? *
    9·2 answers
  • Desperation Here!!
    9·2 answers
  • According to the cladogram, which organisms are the most primitive?
    9·1 answer
  • Why does the illumination of the moons surface appear to change when viewed from earth even through the sun continuously illumin
    10·1 answer
  • An upper motor neuron supplying the lateral rectus muscle of the eye would be part of the ________ tract(s)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!