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1. 
Atmosphere is
A.
The process by which liquid water changes to vapor
B.
The study of all living things
C.
A cause of the uneven heating of the Earth
D.
Blanket of gases surrounding Earth
2. 
Air is made up of...
A.
Nitrogen, hydrogen and carbon monoxide
B.
Nitrogen, oxygen and carbon dioxide
C.
Nitrogen, oxygen and carbon monoxide
D.
Nitrogen, Hydrogen and carbon dioxide
3. 
Which of the following is not true about the atmosphere
A.
Extends from the ground and continues to space
B.
Is the blanket of gases that people breathe
C.
Is an important contributor to Earth's weather
D.
Is not found at cold or wet places
4. 
Water in the atmosphere can exist in three forms...
A.
Invisible gas, water, solid ice crystals
B.
Visible gas, water, solid eye crystals
C.
Invisible gas, vapor, snow
D.
Snow, rain, vapor
5. 
The process of weather begins when...
A.
Earth's atmosphere turns into vapor and the sun can pass
B.
The sun's rays warm Earth's atmosphere and ground
C.
When it is dark and the atmosphere is ice
D.
When the ground starts heating the atmosphere
6. 
Which of the following products contain CFCs chemicals
A.
Book
B.
Stove
C.
Car
D.
Personal Computer
7. 
The visibility reduction refers to
A.
An acid rain cause
B.
An acid rain effect
C.
An effect of using HFCs products
D.
A type of acid rain
8. 
The infrared rays are
A.
The sun rays which human can see
B.
The sun rays which fall below the violet color
C.
The sun rays which fall beyond the red color
D.
The sun rays which are present in CFCs products
9. 
Which is the reason why fishes die in the rivers?
A.
They eat too much fat food
B.
They drink acidic water from rivers
C.
They drink alkali water from rivers
10. 
Heat trapped in the Earth's atmosphere can cause
A.
The warming house
B.
The changing climate
C.
The clean house effect
D.
The greenhouse effect
11. 
A hurricane is created...
A.
Near the forests over the equator
B.
Over the oceans close to the tropical regions
C.
Near the lakes close to the forests
D.
Over the deserts close to the north poles
12. 
In the 1970s ____________ invented the first microscope
A.
Robert Hooke
B.
Jacques Cartier
C.
Anton Van Leeuwenhoek
D.
Charles Bonnet
13. 
The first microscope consisted of
A.
Simple stand object with a plastic inside a dome
B.
Set of lenses on a metal base
C.
Simple stand object with a glass inside a dome
D.
Set of lenses inside a dome
14. 
A compound microscope is the one that
A.
Has many colorful pieces
B.
Is elegant and interesting
C.
Has more that one lens
D.
Is very difficult to use
15. 
The mechanical stage allows you to
A.
Center the object under the objective lenses
B.
Hold the slides
C.
Measure the amount of light you need
D.
Magnify the image of an objet 10x
16. 
To observe the organism in more detail, you use
A.
The stage
B.
The inclination joint
C.
The diaphragm
D.
The low-power lens
17. 
When you finish seeing through the microscope, you
A.
Turn off the microscope
B.
Draw details of what you saw
C.
Close the diaphragm
D.
Block the light that comes from the light source
18. 
To bring the organism into focus, you
A.
Turn the coarse adjustment knob
B.
Turn off the microscope
C.
Decrease the amount of light
D.
Place the slide on the stage