Unit 9 Test Question Preview (ID: 42701)
Characteristics Of The Solar System.
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Which of the following factors is not essential for supporting life on Earth?
a) advanced technology
b) atmosphere containing oxygen
c) distance of the sun
d) water in a liquid form
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) The tilt of Mars on its axis is very similar to Earth, causing similar seasons.
c) 95% of the atmosphere on Mars is made up of CO2.
d) Mars and Earth are similar in size, shape, and density.
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) Life has only been found where there is water.
b) Martians might be afraid of water.
c) Earth could get water from Mars if necessary.
d) This means there is currently life on Mars.
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) Engaging in a daily routine using exercise equipment.
b) Drinking extra fluids.
c) Eating more calories.
d) Wearing protective clothing while inside the space vehicle.
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
The insulated feature of space suit layers are designed to --
a) regulate temperature
b) protect from radiation
c) trap excessive CO2
d) provide pure O2
How does the space suit backpack help astronauts breathe in a space environment?
a) Provides O2, for inhaling and canisters to collect CO2
b) Maintains air pressure to keep bodily fluids from boiling
c) Stabilized an internal temperature of 22 degrees C or 72 degrees F
d) Collects urine and solid wastes
What work of Sir Isaac Newton helped others to understand and overcome the obstacles of modern space travel?
a) discovery of gravity
b) invention of electromagnetism
c) construction of simple rockets
d) laws of planetary motion
All of the following are ways that the atmosphere makes the existence of life on earth possible EXCEPT -
a) maintains a constant temperature
b) shields Earth from small collisions
c) offers protection from radiation
d) allows for gas exchange between plants and animals
The equipment inside of a space vehicle must be attached by cords to accommodate for which factor?
a) microgravity
b) pressure
c) friction
d) radiation
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