A planet with a higher reflectivity will do which of the following?
A) reflect more light and absorb less light
B) reflect less light and absorb more light
C) emit more light
D) emit higher energy light
E) transmit more light
A) reflect more light and absorb less light
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The most common kinds of stars are low-luminosity stars
Indicate whether the statement is true or false
The _____ occurs when some of the energy in the convective motion of gas is converted into magnetic field energy
a. meridional flow b. Maunder minimum c. dynamo effect d. reconnection event e. Zeeman effect
Modern nuclear bomb tests have created an extra high level of 14C in our atmosphere. Suppose that future archaeologists date samples from our era, but do not know about this testing
Will their dates be too young, too old, or still correct? If correct they are correct, why? A) too young B) too old C) correct, because 14C from bomb tests is different from that produced naturally D) correct, because modern biological materials do not gather 14C from bomb tests
The presently accepted value of the Hubble constant gives an age of:
A) 4.5 billion years. B) 8-9 billion years. C) 14 billion years. D) 18 billion years. E) 22 billion years.