All categories

3 years ago

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

What was the second organism to be found here on planet Earth? *

mafiozo [28]

What was the second organism to be found here on planet Earth?

Prokaryotes

The prokaryotes are considered to be the most oldest on earth. The first found organism on earth was bacteria and then many other Prokaryotes were found...~

7 0

1 year ago

Read 2 more answers

Which gas is responsible for global warming and which gas is responsible of ozone layer depletion

Radda [10]

1. Carbon Dioxide

2. Carbon Dioxide

5 0

3 years ago

What is the difference in the cell cycle between healthy cells and cancerous cells?

Archy [21]

Cancerous cells go through interphase so fast, that they are constantly multiplying in mitosis.

7 0

3 years ago

How are the changes in atmospheric carbon dioxide described? A. Carbon dioxide levels have increased B.carbon dioxide levels can

drek231 [11]

A. Carbon dioxide levels have increased

Hope this helps!

8 0

2 years ago

Protists can be harmful for which of the following reasons?

sergejj [24]

Answer:

The answer is both the first (Cause disease) and second (Cause algal blooms)

Explanation:

Protists may cause disease and even kill living things. Also, algal blooms are essentially protists but have chloroplasts- which plays a part in them being harmful.

6 0

2 years ago

Read 2 more answers