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
mestny [16]
3 years ago
13

Explain how the percentages of nitrogen, oxygen and carbon dioxide in the Earth’s atmosphere today have changed from the Earth’s

early atmosphere.
Biology
1 answer:
Degger [83]3 years ago
4 0

Explanation:

The early atmosphere was mainly carbon dioxide and water vapour. Water vapour condensed to form the oceans. Photosynthesis caused the amount of carbon dioxide to decrease and oxygen to increase.

You might be interested in
A balloon is filled with air. If the balloon is then left out in the sun and warms up, what do you expect to happen?
ale4655 [162]

Answer:

A: The balloon expands

Explanation:

Since the heat is absorbed by the balloon, the molecules inside will spread apart.  When this happens, the balloon will also expand as the molecules expand which therefore the balloon grows.

8 0
2 years ago
I need a little help (I'll give you brainliest), What is the problem with having plant life on Mars, and what is the solution to
LuckyWell [14K]

Answer:

The problem: Under Martian gravity, the soil can hold more water than on Earth, and water and nutrients within the soil would drain away more slowly. Some conditions would make it difficult for plants to grow on Mars. For example, Mars's extremely cold temperatures make life difficult to sustain.

Scientists have conducted plant experiments simulating Martian conditions using volcanic soil in Hawaii, which is known for its similarity to Martian soil. These experiments found that plants can actually grow in these soils.

There are other aspects future Mars explorers will need to consider when growing plants on that planet. As mentioned earlier, Mars’s atmosphere is mostly carbon dioxide, and plants need this gas just as much as we need oxygen to breathe.

4 0
3 years ago
Read 2 more answers
Explain how deforestation contributes to global warming.​
chubhunter [2.5K]

Answer:

The surplus carbon is stored in the plant, helping it to grow. When trees are cut down and burned or allowed to rot, their stored carbon is released into the air as carbon dioxide. And this is how deforestation and forest degradation contribute to global warming.

Explanation:

4 0
3 years ago
How many autosomes in figure 1 ?
Verizon [17]
Answer is a just took test
6 0
3 years ago
Which organelles are found in both plant and animal cells? A. a nucleoid and cell membrane B. a nucleus and a cell wall C. ribos
evablogger [386]
C because they need Ribosomes to make protein and most cell needs protein to survive. Mitochondria because it produce energy for the cell.
~JZ
Hope it helps.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Imagine that part of a population of South American finches is blown by a storm onto an island far offshore and manages to survi
    5·1 answer
  • What is the definition of microorganism
    12·2 answers
  • A 47-foot-long piece of pipe is to be cut into three pieces. The second piece is three times as long as the first piece, and the
    11·1 answer
  • When members of a population move out of a given area,it is called
    6·2 answers
  • Even though part of it is nonliving, ____ functions to protect the living parts of the stem
    10·1 answer
  • I need help <br> explain mitosis
    6·1 answer
  • This virus attacks the white blood cells of the human body. Eventually, the immune system cannot handle the viral invasion. This
    13·2 answers
  • Since prokaryotic cells lack membrane-bound orgnelles, many metabolic functions in the cell take place...
    5·2 answers
  • ANSWER ASAP: Dead zones are caused largely by the input of agricultural fertilizers that stimulate phytoplankton blooms, which d
    15·1 answer
  • 7. Glucose molecules are the building blocks of what
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!