science water unit test Flashcards

science

1
Q

water on earth is ————in the water cycle

A

recycled endlessly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

vrai ou faux the quality and quantité d’eau are both important environmental concerns

A

vrai

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

—% of water on earth is salt water

A

97%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

3% of water on earth is fresh most of it is —-

A

frozen in ice or glaciers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

vrai ou faux: Both glacial erosion and glacial deposition
have affected and continue to affect the surface
features of Earth.

A

vrai

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

————————- mountains act as natural freshwater storehouses

A

Icefields, glaciers, and snow in high

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

studying ancient—-can reveal clues about the climate of the past

A

Ice

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

many scientists believe one reason for global warming is greenhouse gases in the ——

A

Earths atmosphere

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Fresh water exists both above ground as——-, and below ground

A

eau de surface, eau souterraine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

le usage de la terre peut affecter ————- et le santé d’un watershed

A

l’eau de ruissellement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The rate of flow of a stream affects how much ————————, as well as the amount of
sediment the stream transports.

A

erosion takes place

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

By studying the quantity, quality, and characteristics of sediment in a stream or river, scientists
and engineers can determine the impact of
——————————–.

A

pollutants on the aquatic environment.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Large withdrawals of groundwater are resulting
in ——————— in many areas.

A

aquifer depletion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

les organismes végétaux dans
plancton

A

phytoplancton

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

les organismes animaux du plancton

A

zooplancton

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

une fissure dans le
fond océanique qui libère de la chaleur et
minéraux (447)

A

bouche au fond marine????

17
Q

le processus de préparation des aliments en utilisant
l’énergie provenant de réactions chimiques;
effectué par des bactéries autour
évents du fond marin

A

chimiosynthèse

18
Q

une explosion démographique problématique d’algues ; généralement
causée par un excès de nutriments (par ex.
provenant des engrais)

A

prolifération d’algues

19
Q

Pourquoi les polluants dans la mer ne sont-ils pas produits
inoffensif par dilution ?

A

parce que le polluant est toujours là, juste plus répandu

20
Q

Qu’entend-on par le terme « qualité de l’eau » ?

A

La qualité de l’eau fait référence aux caractéristiques chimiques, physiques et biologiques de l’eau en fonction des normes de son utilisation. Il est le plus souvent utilisé en référence à un ensemble de normes par rapport auxquelles la conformité, généralement obtenue par le traitement de l’eau, peut être évaluée.

21
Q

0.02% water

A

lacs,riviers,etangs

22
Q

eau souterraine

A

0.63%

23
Q

2.15% water

A

calottes glaciers et glaciers

24
Q

mers et oceans

A

97

25
Q

fresh water

A

0.5

26
Q
A