Faunal succession recognized in the sequence of fossils in stratified sedimentary rocks was a key concept that led to ________
A) continental drift
B) sea floor spreading
C) Catastrophism and evidence the world was once covered with water
D) the concept of evolution of life on Earth
D
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Against which variable force must work be done to raise mountains?
A) the rigidity and tensile strength of the rock, which varies with rock type B) gravitational pull, which varies with distance from Earth's core C) the attractive force of the mantle and the melting and subduction of the Earth's crust at boundary zones, which varies according to plate speed D) the magnetic attraction of Earth's core, which will vary according to the composition of the rock in the mountains being pushed up
Since the earth turns ________ the tide wave tends to move ________ around Earth.
A. eastward; eastward B. northward; southward C. westward; eastward D. westward; westward E. eastward; westward
Describe the following weather conditions at 7:00 a.m. EST on November 9, 2011, in Springfield, Missouri (37° N, 93° W; an enlarged copy of the station model is shown here).
The following questions are based on the surface weather map shown below.
(a) Temperature: __________ °F
(b) Wind direction: ________________
(c) Pressure: __________ mb
(d) Pressure change over last 3 hours: __________ mb
(e) What explains this change in pressure?
(f) What explains the difference in temperature between Springfield and Nashville?
In recent years, jellyfish blooms have ____.
A. disappeared B. benefited ecotourism C. altered ocean current flows D. declined in number E. risen in number