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Mars cannot support life as we know it for which of the following reasons?
Water is required for life to exist.
photosynthesis
To protect from micrometeoroids
Sound needs a medium (like air) in which to travel
There is not enough liquid water to support life.
Venus is the hottest because of its thick atmosphere of CO2.
Living in zero gravity weakens muscles and bones.
decrease
An astronaut, who has just returned from six months on the space station, has to be helped from the spacecraft once back on Earth. What is one reason the astronaut needs help?
Water is required for life to exist.
photosynthesis
To protect from micrometeoroids
Sound needs a medium (like air) in which to travel
There is not enough liquid water to support life.
Venus is the hottest because of its thick atmosphere of CO2.
Living in zero gravity weakens muscles and bones.
decrease
The Earth’s location in the Solar System allows it to receive radiant energy necessary for –
Water is required for life to exist.
photosynthesis
To protect from micrometeoroids
Sound needs a medium (like air) in which to travel
There is not enough liquid water to support life.
Venus is the hottest because of its thick atmosphere of CO2.
Living in zero gravity weakens muscles and bones.
decrease
A student’s younger sibling was watching a news story about the possibility of water on Mars. The sibling asked, “Why is finding water so important?” Why is it important?
Water is required for life to exist.
photosynthesis
To protect from micrometeoroids
Sound needs a medium (like air) in which to travel
There is not enough liquid water to support life.
Venus is the hottest because of its thick atmosphere of CO2.
Living in zero gravity weakens muscles and bones.
decrease
What is the hottest planet in our Solar System?
Water is required for life to exist.
photosynthesis
To protect from micrometeoroids
Sound needs a medium (like air) in which to travel
There is not enough liquid water to support life.
Venus is the hottest because of its thick atmosphere of CO2.
Living in zero gravity weakens muscles and bones.
decrease
Astronauts can talk with each other inside the space station, but once outside the station, they use radios to communicate. Why do they have to use the radio?
Water is required for life to exist.
photosynthesis
To protect from micrometeoroids
Sound needs a medium (like air) in which to travel
There is not enough liquid water to support life.
Venus is the hottest because of its thick atmosphere of CO2.
Living in zero gravity weakens muscles and bones.
decrease
An engineer is designing a spacesuit to be used for a long spacewalk. Why does he place a layer made of a similar material to a bulletproof vest on the outside of the suit?
Water is required for life to exist.
photosynthesis
To protect from micrometeoroids
Sound needs a medium (like air) in which to travel
There is not enough liquid water to support life.
Venus is the hottest because of its thick atmosphere of CO2.
Living in zero gravity weakens muscles and bones.
decrease
As distance from the Sun increases, the surface temperature of a planet tends to-
Water is required for life to exist.
photosynthesis
To protect from micrometeoroids
Sound needs a medium (like air) in which to travel
There is not enough liquid water to support life.
Venus is the hottest because of its thick atmosphere of CO2.
Living in zero gravity weakens muscles and bones.
decrease
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