WorksheetsFinal Exam-REVIEW 2/2
Total questions: 45
Worksheet time: 47mins
Select the correct percentages of gases in Earth's atmosphere.
78% Oxygen
21% Nitrogen
<1% Other Gases
78% Oxygen
21% Carbon Dioxide
<1% Nitrogen
78% Nitrogen
21% Oxygen
<1% Other Gases
The role of the Ozone layer is to...
protect Earth from infrared radiation
protect Earth from ultraviolet radiation
protect Earth from gamma radiation
Why is the ozone layer so important?
Because it traps most of the sun's heat.
Because it contains most of the earth's oxygen
Because it blocks harmful ultraviolet rays.
Because it allows ultraviolet rays to warm the stratosphere.
Which layer of the atmosphere contains the ozone?
Troposphere
Mesosphere
Stratosphere
Exosphere
Which of the following removes carbon dioxide (CO2) from the atmosphere?
What gas makes up 21% of Earth's Atmosphere?
Nitrogen
Oxygen
Ozone
None of the Above
Weather occurs here.
mesosphere
weathersphere
thermosphere
troposphere
How can Nitrogen gas (N2) be fixed into a usable form for plants?
Through the action of bacteria only
Through lightning only
Through the action of bacteria and lightning
True or False- Bacteria fix nitrogen from the atmosphere into a form that plants can use.
True
False
What converts nitrogen gas into a usable form for plants and animals?
bacteria
roots
fungi
car exhaust
How do animals get the nitrogen they need?
From the air they breathe
From the water they drink
From the food they eat
From the sun
A correct path that Nitrogen could take would be...
Air--> Animals--> Plants--> Bacteria
Air--> Bacteria--> Plants--> Animals
Mining that is done above ground is called...
surface mining.
subsurface mining.
Which of the one of the following is an effect of land being disturbed by mining?
Better water quality
Loss of Habitat for animals
New habitat for animals
No negative effects
What is a mineral?
a non-living solid found in nature
scratching another mineral
breaking another mineral
the hardness
Which question does NOT identify a characteristic of a mineral?
Is it inorganic?
Does it have a definite chemical composition?
What color is the object?
Is it a solid?
Match the following words to their definitions.
Color
only used to identify a few minerals
Streak
color of mineral's powder
Luster
light reflected from a mineral's surface
Hardness
measured on a scale of 1-10
Density
mass/volume
In a power station, what causes the turbine to turn?
Heat
Gas
Air
Steam
Fossil fuels were formed from ____.
the remains of once living organisms.
the earth.
solids, liquids, and gases, made millions of years ago.
sun and water.
Which is an advantage of coal energy?
it's cheap and plentiful
it's a free resource that can be replenished quickly
It creates greenhouse gases when burned
it will eventually run out
We can (a) waste by buying reusing cups, bags and containers.
We can (b) aluminum cans, paper and motor oil.
We can (c) cell phones and rechargeable batteries.
We can (d) vegetable & fruit peelings, yard trimmings, shredded paper.
What of these can be composted?
Egg shells
Leaves
Pizza crust
All of these
What does it mean by organic waste?
Waste that comes from plants.
Waste that comes from animals.
Waste that comes from both plants and animals.
Waste from plastic.
97%
3%
Of all of the freshwater on Earth, most of it is found in ______
lakes
streams
wetlands
glaciers
The diagram shows the distribution of water on the Earth. Based on the diagram, which is true?
Most of Earth's water is fresh water.
Most of Earth's fresh water is contained in ice caps and glaciers.
Most of Earth's water is underground.
Most of Earth's fresh water is contained in the oceans.
Draw something that shows how carbon dioxide acts as a greenhouse gas, and may contribute to global warming
Fossil Fuels are inexpensive to obtain and use. Is this a pro or con?
Pro
Con
Which of the following are greenhouse gases?
Carbon dioxide
Methane
Water vapor
All answers are correct
Why are too many greenhouse gases bad for the environment?
They cause trees to die.
They release heat and will be the cause of the next ice age.
They trap heat in our atmosphere causing the planet to warm up.
They are fossil fuels which pollute our environment.
resources that if used wisely will not run out (water, trees, animals, etc.)
Renewable resources
water, coal, oil, gas, living things and land found in a specific place
Natural resources
resources that cannot be renewed easily (coal, oil, metals and jewels)
Nonrenewable resources
energy made from the sun's light
Solar energy
energy made from the Earth's heat
Geothermal energy
Most of the energy used comes from renewable resources.
Generators (turbines) are used to produce electricity from all of these sources EXCEPT _____.
solar
wind
damn
nuclear
WHICH ONE IS CORRECT? Basic Principle of Coal Power Plant.
Chemical Energy-Mechanical Energy-Heat Energy-Electrical Energy
Electrical Energy-Mechanical Energy-Heat Energy-Chemical Energy
Chemical Energy-Heat Energy-Mechanical Energy-Electrical Energy
Heat Energy-Chemical Energy-Electrical Energy-Mechanical Energy
