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Of the following organisms, which appeared first in the fossil record? In other words, which evolved first?

Astrology is the study of the Universe.

__________ occurs when the land’s surface elevation is lowered due to pumping groundwater from an aquifer.

Longshore currents flow _____________.

Coarse-grained sediments, such as sand and gravel, are transported in a river as __________.

Determine which of the following statements is true using the block diagram shown below. B, C, D, and E are sedimentary units A is a dike (an igneous intrusion) F is an unconformity

How many half-lives have occurred for a mineral specimen if you determine that there is 50% of a given parent isotope remaining? 

Why are some of the most biologically productive regions in the oceans found along the western coastlines of the continents?

What causes water to become more dense and sink in the North Atlantic?

Match each of the planets with their relative distance from the Sun with 1 being the closest and 8 being the furthest.