Which of the following best explains why there is a difference between a lunar day and a solar day?
A) During one Earth rotation, the Moon has continued orbiting Earth.
B) The Moon must rotate an additional 50 minutes to catch up to Earth.
C) The solar day and lunar day are measured from different meridians.
D) The Sun has a stronger pull on the larger Earth versus the smaller Moon.
E) The tide-generating forces of the Sun and Moon are working at right angles.
B
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What is the eventual fate of erosional beaches?
A) The sea cliffs and sea caves overrun the coastline. B) Marine erosion becomes less of a factor with the age of the beach. C) They become a depositional beach. D) None of these choices
When the air is dry, tornadoes can remain invisible until they reach the ground and pick up dust
Indicate whether the statement is true or false
Concerned with the expensive disposal of their hazardous wastes, a company learns that it can purchase another chemical that will neutralize the company's hazardous wastes into a nontoxic form
The strategy used by this company is most consistent with which of the following hazardous-waste disposal system methods? A) Secure landfill B) Deep-well injection C) On-site surface impoundment D) Best-demonstrated available technology
The composition of soil is best described as
A) approximately 45% organic matter, 50% mineral matter, and 5% water and air. B) roughly 45% mineral matter, 5% organic matter, and 50% air and water. C) pebbles, gravel, cobbles, and a varying combination of sands, silts, and clays. D) the very thin surface layer rich in organic matter with some other mineral matter in the mix. E) primarily mineral matter (approximately 72%), but also consists of organic matter (10%), and water (18%).