Food, water, and oxygen, same as on Earth. Temperature control... the PLSS backpacks the Apollo astronauts wore had a sort of high-tech swamp cooler built in. For long lengths of time, radiation becomes a factor. Most radiation in space can be blocked by a spaceship hull, a spacesuit, a few sheets of newspaper, or for that matter, the outer dead layer of the astronaut's skin. But if he is there for say, months, he will be needing better protection. The Apollo astronauts all took less than one rem of radiation exposure on their 9 or 10 day voyage. That's about 1/400 or 1/500 of a lethal dose. If they had stayed, for example, in the thick of the Van Allen radiation belt for a month, they'd probably have been goners. Instead, they zipped through the thin outer edge of it in about an hour. And yet you hear yapping from deliberately uninformed hoaxbuffs who believe Apollo was impossible because they'd have needed six feet of lead for protection!!
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their space suits must be pressure controlled and they have oxygen tanks to breath in air for sure
Women make up 18 percent of all the active astronauts working today. this would mean 6 out of every 35 astronauts are female.
by using a space capsule
Their bodies would become very weak.
The two things produces by plants that would be important to keep astronauts alive on a long journey would be glucose and oxygen. Oxygen is most important.
7 months
They die
transpiration
Two Factors that would affect weather patterns of a region is altitude and nearby bodies of water.
A person will not be able to discuss how the following factors would affect the results of electrophoresis unless they know what the following factors are. This information needs to be included for a person to know the correct answer.
I think because it's beak is long so it can get the insects easily
The main question would be " how does it affect the organisms chances for survival?"
The length of the day would change if either the rotational speed of the the planet or the orbital distance from the sun changed. However, if you mean what factors affect the length of daylight, then that is different.
The factors that affect a river's ability to erode and carry sediment would be its size, how deep it is, and how fast it is going. If it is going downhill that can also affect it.
Three astronauts
Um...astronauts DID land on the moon...
I would suppose that the scientist with the super powered telescopes would discover planets before the astronauts would.
Climate change