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Units 4 and 5 Review

Total questions: 35

Worksheet time: 20mins

Name
Class
Date
1.
What are greenhouse gases?
a)
gases that cause climate change
b)
gases that emit green smoke
c)
gases that are used to make green colored glass
2.
The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?
a)
lower levels of ozone in the atmosphere
b)
lower levels of nitrogen in the atmosphere
c)
higher levels of carbon dioxide in the atmosphere
d)
higher levels of oxygen in the atmosphere
3.
Which of the following is the best conclusion that can be made from this graph?
a)
atmospheric carbon dioxide levels have been decreasing since 1960
b)
Hawaii has a lot of carbon dioxide
c)
humans have been working hard to decrease carbon dioxide levels
d)
atmospheric carbon dioxide levels have increased steadily since 1960
4.
Which of the following have been linked to climate change?  
a)
droughts
b)
flooding
c)
melting of polar ice caps
d)
all of the above
5.
The main human activity that releases greenhouse gases is
a)
using bottled water
b)
burning fossil fuels
c)
texting on cellphones
d)
eating meat
6.
Which of the following is contributing to an increase in carbon dioxide in the atmosphere?
a)
deforestation
b)
photosynthesis
c)
oceans
d)
all of the above
7.
Things you can do to help decrease global warming include:
a)
Eat more ice cream.
b)
Keep your freezer door open.
c)
Keep your air conditioner on high.
d)
Turn off your lights when you’re not using them.
8.
Melting of glaciers and polar ice caps....
a)
will result in cooler temperatures in the Arctic
b)
will result in sea-levels rising
c)
Will have no effect on ecosystems
d)
None of the above
9.
What is the average weather for a particular time and region called?
a)
drought
b)
weather
c)
emissions
d)
climate
10.
Carbon is stored in
a)
Trees and other living things
b)
Oceans
c)
underground in soil and fossil fuels
d)
All are correct
11.

Cutting down large forests (deforestation) can result in:

a)

little to no changes

b)

more homes for animals

c)

less plants to absorb carbon dioxide, a greenhouse gas

12.
1.  In the past, refrigerators, aerosol spray propellants and cleaning solvents were all sources of a greenhouse gas known as
a)
carbon dioxide
b)
methane
c)
chlorofluorocarbon (CFC)
d)
nitrous oxide
13.

Which of the following are greenhouse gases?

a)

Carbon dioxide

b)

Methane

c)

Nitrogen Oxide

d)

All answers are correct

14.

The gas molecules that cause the Earth's greenhouse effect are all of the following except

a)

carbon dioxide

b)

water vapor

c)

methane

d)

nitrous oxide

e)

oxygen

15.

What percentage of the atmosphere is Nitrogen?

a)

0%

b)

78%

c)

21%

d)

1%

16.
A living or once-living organisms in an ecosystem is a
a)
population
b)
biotic factor
c)
abiotic factor
d)
community
17.

A cactus

a)

Biotic factor

b)

Abiotic factor

18.

Air

a)

Biotic factor

b)

Abiotic factor

19.

A zebra skeleton

a)

Biotic factor

b)

Abiotic factor

20.

Precipitation (rain, snow, sleet, hail)

a)

Biotic factor

b)

Abiotic factor

21.

Select all the reactants for Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Glucose (Sugar/food)

22.

Select all that are products of Photosynthesis.

a)

Water

b)

Carbon Dioxide

c)

Oxygen

d)

Sunlight (Light Energy)

e)

Glucose (Sugar/food)

23.

Which organelle is responsible making food (Glucose) using sunlight?

a)

Cell Membrane

b)

Nucleus

c)

Chloroplast

d)

Mitochondria

24.

Which of the following is the correct equation for PHOTOSYNTHESIS?

a)

light + carbon dioxide + water --> glucose + oxygen

b)

carbon dioxide + sugar + water --> oxygen + light

c)

oxygen + light + water --> carbon dioxide + sugar

d)

carbon dioxide + oxygen + water --> Light+ Sugar

25.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
CO2 + light + H2O --> O2 + Sugar
b)
CO2 + sugar + H2O --> O2 + light
c)
O2 + light + H2O --> CO2 + Sugar
d)
CO2 + O2 + H2O --> Light+ Sugar
26.

The purpose of cellular respiration is to produce ?

a)

energy (ATP)

b)

oxygen

c)

sugar

d)

protein

27.
What are the reactants in cellular respiration?
a)
glucose and oxygen
b)
glucose and carbon dioxide
c)
water and carbon dioxide
d)
oxygen and glucose
28.
What are the products in cellular respiration?
a)
water and carbon dioxide
b)
water and glucose
c)
carbon dioxide and oxygen
d)
glucose and oxygen
29.

Which of the following equation explains cellular respiration?

a)

sugar+water -> salt+sunlight

b)

sugar+oxygen -> water+carbon dioxide+energy

c)

water+carbon dioxide+sunlight -> sugar+oxygen

d)

Sugar+energy -> water+carbon dioxide+oxygen

30.

Which of the following organelles is responsible for cellular respiration?

a)

Mitochondria

b)

Nucleus

c)

Endoplasmic Reticulum

d)

Ribosome

31.
What is the correct equation for cellular respiration?
a)
6O2 + C6H12O6 -> 6CO2 + 6H2O + Energy
b)
6O2 + C6H12O6 + Energy -> 6CO2 + 6H2O
c)
6CO2 + 6H2O -> 6O2 + C6H12O6 + Energy
d)
6CO2 + 6H2O + Energy -> 6O2 + C6H12O6
32.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
33.
Organisms that do not decompose can be buried and become what?
a)
water
b)
nutrients
c)
air
d)
fossil fuels
34.
If the plant population decreased, the amount of carbon would _________.
a)
Stay the same
b)
Increase
c)
Decrease
35.
carbon dioxide is a gas produced  by ________ and used by __________
a)
plants and animals 
b)
carbon and photosynthesis
c)
animals and plants 
d)
photosynthesis

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