____________________ is a measure of the light energy that hits one square meter in one second
Fill in the blank(s) with correct word
Flux
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In pre-Copernican astronomy, it was almost universally believed that
a. the planets traveled in elliptical orbits about Earth. b. the center of the universe was the Sun with the Milky Way representing other distant planets. c. the Sun was at the center of the universe. d. Earth was at the center of the universe. e. None of the above was believed.
Why are sunsets and sunrises red?
What will be an ideal response?
We now know of over 100 jovian exoplanets, but no terrestrial planets around other stars similar to the Sun
Indicate whether the statement is true or false
Compared with oceanic crust, continental crust is very buoyant because it is
A) composed of basaltic rock that contains air bubbles from successive lava flows. B) composed of granitic rocks whereas oceanic crust is composed of basaltic rocks. C) thinner and forms a thin upper skin on the oceanic crust below. D) very young and fresh.