The surface rocks on Venus are similar to ____ rocks on Earth
a. oxide-rich
b. anorthosite
c. sedimentary
d. granitic
e. basaltic
e
Physics & Space Science
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Explain how the age of a star cluster provides evidence of stellar evolution
What will be an ideal response?
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How were the lunar maria formed?
What will be an ideal response?
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An object of mass 0.50 kg is transported to the surface of Planet X where the object's weight is measured to be 20 N. The radius of the planet is 6.0 × 10^6 m. What is the mass of Planet X? (G = 6.67 × 10^?11 N / m2/kg2)
a. 1.80E+18 kg b. 5.40E+24 kg c. 2.16E+25 kg d. 1.80E+18 kg
Physics & Space Science
Which of the following radionuclides is used to date once-living material?
a. Rubidium-87 b. Potassium-40 c. Thorium-232 d. Carbon-14
Physics & Space Science