List two fundamental phenomena that indicate that the Big Bang occurred
Two fundamental phenomena indicate that the Big Bang occurred: (1 ) the universe
is expanding, and (2 ) it is permeated by background radiation.
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If a tiger and a lion were to mate, what may be a result?
A) Breeding barriers will not allow the mating to occur. B) The chance of fertility in female offspring increases. C) The species are genetically appropriate and contribute to the exponential growth in the population. D) Sterile or partially sterile offspring are produced. E) A new species forms and replication allows the population to flourish.
The seafloor spreading hypothesis indicates what as the primary cause of continental movement?
A)volcanism in the ocean crust B)convergence of tectonic plates C)the formation and destruction of ocean basins D)the convection of mantle heat E)the decay of radioactive isotopes
What elements of study do physical and human geography share?
A) They are concerned with patterns in space and why and where things occur. B) They both are trying to solve human's influence on the environment. C) It is common for professors to teach both areas. D) They are both concerned with the migration of people from one area to another. E) They both focus on the cultural aspects of geography.
What is natural sand blasting by sand grains called?
a. abrasion b. bump and grind c. desertification d. wearing e. deterioration