Geography, 14.09.2019 13:10 jaydenromero31
1. what do we mean when we say the universe is expanding? is the space between planets in our solar system, or the space between stars in our galaxy expanding, or is something else meant entirely? how does the concept of the expansion of the universe give us its current age?
2. carl sagan famously said that we are "star stuff." in what sense is this true?
3. what is meant by observable universe? what is the difference between the observable universe and the entire universe?
Answers: 1
Geography, 22.06.2019 16:30
How do oceanographers measure the salinity of ocean water?
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Geography, 23.06.2019 03:30
Residents of moldova are mainly a. russian b. ukrainian c. serbian d. romanian the answer is d. romanian
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Geography, 24.06.2019 20:10
Select an environmental issue faced by the countries of this region ( central america, south america, and the caribbean) . write a 150-word essay describing the problems presented by each issue and possible solutions to these problems.
Answers: 3
Geography, 25.06.2019 03:20
If the diameter of the sphere is 12 cm, what is the surface area?
Answers: 1
1. what do we mean when we say the universe is expanding? is the space between planets in our solar...
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