Because of the low relative mass, the gravitational attraction on the moon is ________ that of the Earth
A) 1/2
B) 1/4
C) 1/6
D) 1/8
Answer: C
Environmental & Atmospheric Sciences
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A population of bats evolves because organisms from a separate bat population move into the population. This mechanism of evolution is known as
A) natural selection. B) mutation pressure. C) genetic drift. D) gene flow.
Environmental & Atmospheric Sciences
Evaporites in the rock record commonly indicate a period of arid climate. Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
An example using a genetic classification of minerals is
A) The Metamorphic Minerals. B) The Mohs Hardness Minerals. C) The Silicate Structures. D) The Rock Forming Minerals.
Environmental & Atmospheric Sciences
Bioinvaders are responsible for ____ of all fish extinctions in the United States since 1900 and huge economic losses.
A. 1/4 B. 1/3 C. 1/2 D. 2/3 E. 3/4
Environmental & Atmospheric Sciences