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muminat
3 years ago
12

The United States space program:

Biology
2 answers:
meriva3 years ago
8 0

Answer:

nasa

Explanation:

ruslelena [56]3 years ago
5 0

Answer:

NASA

Explanation:

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What marks the boundary between the mesozoic and the cenozoic (called the k-p boundary)? g?
olga55 [171]
The extermination of the dinosaurs, the start of a rise to dominance of mammals and a meteorite effect in mexico marks the boundary among the mesozoic and the cenozoic or as named as the k-p boundary. In addition, the cretaceous paleogene (K–Pg) boundary which is previously recognized as the cretaceous tertiary (K–T) boundary is a geological signature typically a thin band of rock.
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3 years ago
What type of stellar object will the sun end its life end
Lerok [7]
Your wording is a bit confusing, but I get what you're trying to say.

Here's what the life cycle of a star looks like.

Stars begin as giant balls of hydrogen colliding together and releasing a ton of energy. This hydrogen will eventually fuse together to form helium, and once all of the hydrogen has become helium, This helium will, after a very long time and under lots and lots of pressure, form carbon. When this happens, it is considered a red giant, and the star becomes bigger and less bright. The star will become less and less bright and eventually start to shrink as all of that carbon turns to heavier elements like iron, turning into a dwarf star that eventually dies out.
(Dwarf stars are still shining are called white dwarf stars, and dead ones are black)

The cool part, though, is that massive stars (those which have a mass of at least 3 times the Sun's) turn into heavy elements so fast that the core collapses almost instantaneously and explodes violently into a ball of fire known as a supernova.

Sometimes the core of the star gets left behind, and either forms a neutron star or, if it has the mass of a massive star, will collapse in on itself and become a black hole.

7 0
3 years ago
Which of these is an example of interactions between the atmosphere and hydrosphere?
stiks02 [169]
I think it is c if im not wrong
6 0
3 years ago
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Which of these future technology tools would best help someone with his or her health care if he or she is unable to leave the h
navik [9.2K]
Blood pressure machine is already a technology now, so that one is wrong. 

Well, actually, in-home robots would not be able to help with healthcare as much. 

And electronic asprin I don't see how that would help.

So, I think the answer would be the b. Virtual doctor appointments.
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Hypothesis that can be tested through experimentation?
irinina [24]

Answer:

If I give a plant an unlimited amount of sunlight, then the plant will grow to its largest possible size.

Explanation:

If-then statements

6 0
3 years ago
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