Could you tell me what is sputnik?

Answers

Answer 1
Answer: 'Sputnik' was the first artificial satellite to successfully achieve Earth orbit.

It was launched by the USSR on October 4, 1957.  It was not the first rocket fired
by Russia, and it wasn't even the first launch of an artificial satellite. There had
been several failed earlier attempts, by both the USSR and the USA. But Sputnik-1
was the first package that went into Earth orbit and actually stayed there for a couple
of months.
Answer 2
Answer: the sputnik was the first space rocket from russia during the cold war

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50 POINTS!!!!!! 2. What would make Mars a challenging place for humans to live? How may Mars have been different in the past?

Answers

What would make Mars a challenged place for humans to live?
Although Mars is one of the most Earth-like planet in the solar system, living on it would be pretty tough. It is extremely cold on Mars, night time temperature averaging below -100°C. You think the 40 degree weather right now is cold. Try living on Mars. Nobody could survive on Mars without a really advanced winter coat. Another reason that living on Mars would make it hard is the atmosphere. It is like a tiny little needle, though. Since it is very delicate, you would need a spacesuit and some oxygen to bear the low pressure. Your saliva would completely fry your lungs into a nice dinner for possible aliens who might live there. One tiny hole in your spacesuit and you're out forever. Every two Earth years, there is a chance of a dust storm on Mars. Would you like to live on Mars that has a dust storm that lasts for weeks and the lighting drops to 99%? That other 1% is you seeing your death. You might bring some advanced night vision and some sunglasses for the dust. I believe we will have life on Mars soon, with advanced technology and the right people to plan it out.

How may Mars have been different in the past? 
Mars was never a cold planet. At once it had a thick atmosphere and known to have a reliable water source on the planet. This would have been a great time to take a visit to Mars and see if we can set human life on the planet, but that was about 4 billion years ago and we didn't have the technology we have nowadays to set a person onto a planet. 

Mars is too cold, not enough water, has a very thin atmosphere, has dust storms, and hard to make self sufficent and get supplies. It could have been a more suitable planet to live in with enough water.

Which geologic principle is the reason rock layers typically form parallel to each other?

Answers

The geologic principle that is the reason rock layers typically form parallel to each other is Original Horizontality. It is important to know that the principle of Original Horizontality states that due to the gravitational action, the layers of sediment are deposited horizontally. It is actually a technique of relative dating. 

Why aren't people evacuated in a tornado warning

Answers

Because it’s not the same thing as a actual tornado so if it isn’t a problem then we don’t need to evacuate

Nimbostratus or cumulonimbus clouds will most likely bring _____. rain sunshine warm weather cold weather

Answers

The best word to fill the blank is rain. Nimbostratus or cumulonimbus clouds falls under the category of the rain clouds. The nimbostratus clouds are dark, rain carrying clouds while the cumulonimbus clouds are the clouds which produces showers and thunderstorms.

Answer:

A. rain

Explanation:

Odyssey ware

Bob and mark talk about their families. No says he has 3 kids, the product of their ages is 72. He gives another clue: the sum of the ages of his children. Mark points out that there is still not enough information to accurately guess. Finally, Bob says," My youngest child called Justice." Mark can correctly determine the ages of Bob's children. What are the ages?

Answers

Given:
There are 3 kids and the product of their ages is 72.
Youngest child has a name Justice. Meaning, they have different ages.

So, in order for us to know the possible ages, we need to factor 72. Let us use prime factorization.

72 ÷ 2 = 36
36 ÷ 2 = 18
18 ÷ 2 = 9
9 ÷ 3 = 3
3 ÷ 3 = 1

So that will be
1 x 2 x 2 x 2 x 3 x 3 = 72

Based on the factors we can assume the following ages:

1 x 8 x 9   = 72
1 x 3 x 24 = 72
2 x 4 x 9   = 72
3 x 4 x 6   = 72
1 x 4 x 18 = 72

The one above shows the possible ages of the three kids.

The mountainous terrain of Greece was suitable for growing the exportable crops of _____. Select the best answer from the choices provided. corn and soybeans olives and grapes cotton and rice olives and cotton

Answers

Olives and grapes. Throughout Greek culture, these two products are are mentioned time and time again, from the olive branch representing Athena to grapes and wine symbolizing Dionysus.