Question 1

Aquatic ecosystems makeup  ______ of Earth's surface and help maintain the ecological balance.

Accepted Answer

75 %

Answer

50%

Answer

35%

Answer

85%

Question 2

The aquatic ecosystem should be protected and conserved.

Accepted Answer

true

Answer

false

Question 3

It tells us how two objects are far apart.

Accepted Answer

distance

Answer

length

Answer

space

Answer

speed

Question 4

It is the fundamental unit for length based on SI.

Accepted Answer

meter

Answer

speed

Answer

kilometer

Answer

distance

Question 5

It is another common unit used to measure longer distances.

Accepted Answer

kilometer

Answer

distance

Answer

meter

Answer

speed

Question 6

Fundamental unit for time.

Accepted Answer

seconds

Answer

minutes

Answer

hour

Question 7

The International System of Units (SI)  is the international standard for measurement.

Accepted Answer

true

Answer

false

Question 8

It is the distance traveled by an object over time.

Accepted Answer

speed

Answer

distance

Answer

kilometer

Answer

length

Question 9

Distance may be measured in meters or kilometers while time is in seconds or an hour.

Accepted Answer

true

Answer

false

Question 10

300 minutes = 6 hours

Accepted Answer

false

Answer

true

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