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
Aleks [24]
3 years ago
14

Which of the following elements makes up the smallest percentage of the atmosphere?

Biology
2 answers:
Tanzania [10]3 years ago
5 0

Answer:

c: Carbon Dioxide

Explanation:

Earth's atmosphere is mainly made up of:

78% nitrogen

21% oxygen

0.03% carbon dioxide

And smaller percentages of other elements. Therefore, out of the options, the answer is carbon dioxide

Brrunno [24]3 years ago
3 0

Answer: A

Explanation:

Oxygen makes up another 20 to 21 percent of our atmosphere. It's essential for life on Earth, and interestingly enough, it is poisonous when highly concentrated. Our concentration of 20 to 21 percent seems just right.

You might be interested in
Can someone please help me?
Romashka-Z-Leto [24]
Carbon sinks (the ocean is actually the largest carbon sink)
5 0
3 years ago
In a population of beetles, some are green, some are brown, and some are mixed. If the beetles live in vegetation, the ________
Bess [88]

green its more shiny and more likely to stand out


5 0
3 years ago
Read 2 more answers
sort the items according to whether they may be found only in free virus particles, only in uninfected host cells, or in both vi
andrey2020 [161]
The correct answer for the question that is being presented above is this one:
(1) viruses only: capsid, envelope with glycoproteins, capsomere (core protein)
<span>(2) host cell only: ribosome 
</span><span>(3) both: DNA, RNA, Protein</span>
3 0
3 years ago
Which phase best describes a chapparal
Kobotan [32]

The options attached to this question are given below:

A. contains mostly needle-leaved evergreen trees.

B. is home to herds of giraffes, zebras, and wildebeests.

C. receives less than 25 cm of precipitation per year.

D. has low-growing; touch shrubs and rock, dry soils .

ANSWER

The correct option is D.

The chappral biome is one of the most widespread biome in the world, it can be found on almost all continents. The major characteristic of the biome include the following:

It has both forest and grassland,

It has two major seasons, winter and summer; the summer season is usually very dry and last for about five months.

The dry summer makes the biome sensitive to fire outbreak, which is a common occurrence there.

The amount of rain available to the biome is about 10 - 17 inches per year and is only able to support shrubs growth, only few trees can be found in the biome.

The biome can be a plain, a rolling hill or a mountain and the soil is usually very dry.  

5 0
3 years ago
How could the basic compounds necessary for life have been formed on early Earth? *
Phoenix [80]

Answer:

The Miller Urey experiment provide the first evidence that organic molecules needed for life could be formed from components.

Explanation:

4 0
3 years ago
Other questions:
  • What are three main types of point mutations that can occur during replication or protein synthesis?
    9·1 answer
  • A gated channel in a cell membrane allows
    12·2 answers
  • The umbilical cord connects the embryo to the
    6·2 answers
  • What amino acid would be produced if transcription took place from the DNA sequence CAT?
    15·1 answer
  • Which of the following statements is true?
    13·1 answer
  • Which of the following is true? Group of answer choices In the brain, neurons are more abundant than neuroglia. An action potent
    6·1 answer
  • Why should we have a helathy envionment explain​
    15·1 answer
  • A male walrus lives to be 20 years old and mates with 18 females during its life. A second male lives to be 10 years old but mat
    13·1 answer
  • You are solving a density problem, where density = mass/volume. Your volume of liquid is 2.1 milliliters. Your mass of the liqui
    6·1 answer
  • James is working with the lac operon of Escherichia coli (E. Coli). He places the bacteria on a plate of growth media. The lac O
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!