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Chem Cp:Review

Total questions: 20

Worksheet time: 23mins

Name
Class
Date
1.

A ________________ feedback loop makes a system more stable.

a)

Positive

b)

Neutral

c)

Negative

d)

Circular

2.

A _________________ feedback loop moves a system to often become more extreme and unhealthy.

a)

Positive

b)

Neutral

c)

Circular

d)

Negative

3.

What has the highest albedo?

a)

the oceans

b)

Ice in the Arctic or Antarctic

c)

the ground

d)

roads

4.

How does heat energy from the sun reach Earth?

a)

conduction

b)

insulation

c)

radiation

5.

Which would you expect to have the lowest albedo?

a)

dark soil

b)

white sand

c)

ice and snow

d)

deep sea water

6.

What is the significance of the Greenland ice sheet in the context of global sea level rise?

a)

It is the largest ice sheet in the world

b)

It is a major contributor to future sea level rise

c)

It is melting at a slower rate than other ice sheets

d)

It has no significant impact on sea levels

7.

What are the environmental consequences of microbeads on Arctic ice?

a)

Microbeads have no environmental consequences on Arctic ice.

b)

Microbeads on Arctic ice help to preserve the ecosystem.

c)

The environmental consequences of microbeads on Arctic ice include pollution and harm to marine life.

d)

Microbeads on Arctic ice have positive effects on marine life.

8.

Which color ABSORBS light energy?

a)

green

b)

white

c)

red

d)

black

9.
Light bounces when it is 
a)
reflected
b)
absorbed
c)
refracted
10.
black
a)
refracts
b)
absorbs
c)
reflects
11.
The "cause" for something to happen is the
a)
response
b)
effect
c)
stimulus
d)
homeostasis
12.
When glucose levels in the blood rise, your brain sends a signal to your pancreas. The pancreas releases insulin, which opens channels in cell membranes to allow glucose to enter the cell, lowering blood sugar levels. 
a)
Positive Feedback Response
b)
Negative Feedback Loop 
13.
When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed.
a)
Positive Feedback Response
b)
Negative Feedback Loop 
14.
Rapid growth during puberty causes your body to release more and more growth hormones. As you grow, more and more growth hormones are released until puberty is reached, and then the hormones stop.
a)
Positive Feedback Response
b)
Negative Feedback Loop 
15.
As you get dehydrated, your blood becomes thicker and harder to pump. Your kidneys will respond by stopping urine production, sending the water from urine into your bloodstream to thin your blood back to normal level.
a)
Positive Feedback Response
b)
Negative Feedback Loop 
16.

What type of feedback loop is shown?

a)

negative

b)

neutral

c)

positive

17.
Albedo can best be described as...
a)
the temperature at the equator
b)
the amount of solar radiation absorbed
c)
the amount of solar radiation reflected
d)
the air pressure during El Nino
18.
If the ice caps continue to melt, then there is less albedo at the poles.  This process will continue to melt more ice and have less albedo.  This is an example of a...
a)
fruit loops
b)
loop di loop
c)
negative feedback loop
d)
positive feedback loop
19.

If you want to keep your house cool all year, should you design the house roof to have a high or a low albedo?

a)

High

b)

Low

20.

Which object below would have an albedo score of 0.

a)

A green forest

b)

A deep blue ocean

c)

Fresh clean snow

d)

A pitch black rooftop