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Unit 9 Test
Test Description: Characteristics of the Solar System
Instructions: Answer all questions to get your test result.
1) Which of the following factors is not essential for supporting life on Earth?
A
water in a liquid form
B
advanced technology
C
distance of the sun
D
atmosphere containing oxygen
2) It has been suggested that life could exist on Mars. Which characteristic best supports the possibility of life on Mars?
A
Water molecules have been found on Mars surface.
B
95% of the atmosphere on Mars is made up of CO2.
C
Mars and Earth are similar in size, shape, and density.
D
The tilt of Mars on its axis is very similar to Earth, causing similar seasons.
3) Scientists have found evidence that in the past there may have been liquid water on the surface of the planet Mars. Why would scientists be interested in this information?
A
Earth could get water from Mars if necessary.
B
Martians might be afraid of water.
C
Life has only been found where there is water.
D
This means there is currently life on Mars.
4) On a space mission, the gravitational environment can negatively affect the bone density of astronauts. Which accommodation will most likely protect the bone health of the crew on a space mission?
A
Wearing protective clothing while inside the space vehicle.
B
Eating more calories.
C
Drinking extra fluids.
D
Engaging in a daily routine using exercise equipment.
5) An astronaut's suit provides for the basic needs of the astronaut. Which of the following is NOT an accommodation provided by the astronaut's suit?
A
Microgravity
B
Insulation
C
Air pressure
D
Waste management
6) The insulated feature of space suit layers are designed to --
A
protect from radiation
B
trap excessive CO2
C
regulate temperature
D
provide pure O2
7) How does the space suit backpack help astronauts breathe in a space environment?
A
Collects urine and solid wastes
B
Stabilized an internal temperature of 22 degrees C or 72 degrees F
C
Maintains air pressure to keep bodily fluids from boiling
D
Provides O2, for inhaling and canisters to collect CO2
8) What work of Sir Isaac Newton helped others to understand and overcome the obstacles of modern space travel?
A
construction of simple rockets
B
invention of electromagnetism
C
laws of planetary motion
D
discovery of gravity
9) All of the following are ways that the atmosphere makes the existence of life on earth possible EXCEPT -
A
maintains a constant temperature
B
allows for gas exchange between plants and animals
C
offers protection from radiation
D
shields Earth from small collisions
10) The equipment inside of a space vehicle must be attached by cords to accommodate for which factor?
A
microgravity
B
pressure
C
radiation
D
friction
*select an answer for all questions
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