Which numbered layer represents the oldest layer?
A. 1
B. 2
C. 3
D. 4
Answer: A
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What explorer’s expeditions used rope with a weight attached to determine ocean depths?
a. Eratosthenes b. Ferdinand Magellan c. Sir James Clark Ross d. Christopher Columbus e. James Cook
Which of the following best matches the description?Type of electromagnetic radiation that comes from disintegrating atomic nuclei.
A. gamma radiation B. transuranic waste C. decommissioning D. nuclear fusion E. alpha radiation F. radiation G. heavy-water reactor H. nuclear fission I. light-water reactor J. thermal pollution K. U-235 L. rem M. moderator N. radioactive half-life O. nuclear breeder reactor P. beta radiation
The extreme summer aridity of the ____________________ climate, which in California may exist for five months, is caused by the sinking air of the subtropical highs
Fill in the blank with correct word.
Biomass energy represents a potential energy source that offers a number of obvious advantages over other forms of energy sources. However, there are growing concerns over a number of possible negative impacts associated with bioenergy. Discuss at least
two specific advantages and two specific concerns relating to the use of biomass energy. What will be an ideal response?