When the Hubble Space Telescope was launched in 1990, it allowed astronomers to see objects in space with greater accuracy and clarity. In 2003, with the launch of the Spitzer Space Telescope, astronomers saw even more objects that make up the universe. How do different types of telescopes provide different forms of data? Give examples to explain your answer.

According to the earth science reference tables, during which geologic time period were the continents of north america, south america, and africa closest together?

If you could drill a hole straight to the center of the earth, and keep track of what the hole is going through, youwould find: a) you would go through one sort of material, and then a different, denser material, and then a still-different, still-denser material, because the planet is made of concentric layers, sort of like an onion. b) you would go through one sort of material all the way to the center, because the planet is all mixed up. c) if your hole started at the north pole, you would go through different layers of different materials, but ifyour hole started at the equator, you would go through one sort of material all the way to the center. d) if your hole started at the equator, you would go through different layers of different materials, but if yourhole started at the north pole, you would go through one sort of material all the way to the center. e) you would strike diet pepsi when you got to the center.

What are economic benefits of building dams