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Biology final test 7°

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Last updated almost 5 years ago
20 questions
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Question 1
1.

The letter E represents:

Question 2
2.

The letter D is related to the formation of:

Question 3
3.

Which one is not a consequence of burning fossil fuels is ..

Question 4
4.

The acididification of oceans caused by the excess of carbon dioxide in the atmosphere is a threat for marine organisms like fish or seals.

Question 5
5.

This is a living organism that helps to produce the majority of oxygen in the atmosphere.

Question 6
6.

The organisms that helps to transform the atmospheric nitrogen in simple nitrogen molecules and vice versa are

Question 7
7.

The process by which bacteria transform atmospheric nitrogen (in air) into nitrogen molecules that are used by plants is called.

Question 8
8.

Artificial fertilizers are an environmental concern because they can pollute water causing algal blooms.

Question 9
9.

The proccesses that balance the levels of carbon dioxide and oxygen in the atmosphere are:

Question 10
10.

Which gas is increasing in the atmosphere and threatening the world with the greenhouse effect?

Question 11
11.

What is the main source of increasing greenhouse gases?

Question 12
12.

Nitrogen is released into the atmosphere by:

Question 13
13.

The greatest concentration of nitrogen on the planet Earth is found in:

Question 14
14.

Which cycle relies heavily upon bacteria?

Question 15
15.

Many marine organisms incorporate carbon into their shells. These shells become part of the

Question 16
16.

Groundwater is water:

Question 17
17.

Most fresh water exists as:

Question 18
18.

Does precipitation happen before or after condensation?

Question 19
19.

How you can name the water that flows in rivers and streams into the oceans and lakes

Question 20
20.

What is the correct term for plants releasing water from their leaves, which then evaporates?