Within limestone bedrock undergoing dissolution
a. Stalactites/stalagmites
b. Caves/stalactites
c. Sinkholes/caves
d. Stalagmites/stalactites
Answer: b. Caves/stalactites
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Which of the following largely determines an atom's atomic weight?
A. the number of protons and neutrons B. the number of neutrons C. the number of electrons in the outer shell D. the number of electrons
Prescribed burns would be used in forests ________
A) to convert primary forests into secondary forests B) that are subject to severe wild fires to remove fuel load and stimulate new growth C) that have heavy recreational use to warn people about the dangers of fires D) plagued with insects as a cheaper alternative to pesticides E) where there high densities of endangered species, such as tropical rain forests
Pillow structures, pillow-shaped rounded masses, form where lava is extruded under water.
Answer the following statement true (T) or false (F)
Alternative energy sources that are often called "new renewables" include ________
A) solar, wind, and geothermal B) coal and natural gas C) fusion and fission D) wind, wood, and alcohol E) hydropower and biomass