Which of the following geologic aspects influence our lives based on the photograph showing horses and cows on a grassy field?

A) the presence of mountains, which influence the formation of clouds and precipitation
B) the steepness of slopes
C) the availability of water
D) all of these

Which pair of predators exemplify resource partitioning by being active during different periods of time? 

A)  hawks and owls 
B)  lions and tigers 
C)  hummingbirds and bees 
D)  zebras and antelopes

The three types of toxic chemicals are mutagens,teratogens,and carcinogens.

Which of the following factors make a site more suitable for a hydroelectric dam?

A) numerous faults and fractures that allow groundwater to flow into the reservoir
B) permeable rocks next to and beneath the dam to keep pressures from building up
C) a canyon that is wide so that a large dam can be built
D) weak units in the abutments to make construction easier
E) none of these

Broad symmetrical ridges that cross ocean basins are called:

A) mid-ocean ridges
B) abyssal plains
C) seamounts
D) island chains

What is the greatest threat to the world's national parks? 

A)  human activities in nearby areas 
B)  lack of funding 
C)  uncontrolled populations of prey because of the decline in predators 
D)  pollution

What processes associated with mountain and basin formation may accompany ocean-continent convergence?

A) Formation of an oceanic trench
B) Creation of a fold and thrust belt
C) Development of a foreland basin
D) Thickening of the crust due to compression and the addition of volcanic rock
E) All of these

Which of the following is NOT an advantage associated with hydroelectric dams?

A) the amount of electricity can be changed rapidly
B) there are no emissions of greenhouse gases or toxic contaminants
C) the dam traps sediment that otherwise would be transported down the river
D) the main source of energy, gravity, is free

What were some of the earliest forms of life on Earth?

A) land plants and insects
B) corals and other bottom-dwelling sea creatures
C) microscopic creatures that built mound-shaped structures called stromatolites
D) sharks

What is the name for water scarcity that occurs when precipitation is lower than normal,and evaporation is higher than normal? 

A)  water stress 
B)  aridity 
C)  desiccation 
D)  drought