Meridians of longitude measure
A. positions north or south
B. depths of the oceans
C. positions east or west
D. heights of mountains
C. positions east or west
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The concentration of mineral resources and production in a few countries favors the establishment of cartels
Indicate whether the statement is true or false.
In a manipulative experiment ________
A) the motive is economic gain, so scientists manipulate the data B) replication of the experiment is not necessary C) researchers manipulate the independent variable D) researchers manipulate as many variables as possible E) the peer review process is bypassed
Tyrone Hayes is most famous for his studies ________
A) on gonadal abnormalities in frogs B) about the dangers of second-hand smoke C) on neurological effects of pesticide poisoning D) describing abnormalities in alligators in Lake Apopka E) about the dangers of DDT
________ is the relationship of distance on a map to the actual distance on the ground
Fill in the blank(s) with correct word