During a major El Niño event, ____
A) record amounts of fish are harvested at the time of the winter solstice
B) extensive ocean warming occurs in the eastern tropical Pacific
C) eastern trade winds increase in strength
D) extensive upwelling occurs in the eastern tropical Pacific
B
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Our economic systems promote unsustainable forms of industrialized agriculture because
a. they so successfully provide healthy food to our populations b. they do not include most of the harmful environmental and health costs of such food production in the market prices c. they are so effective in cutting costs d. they provide so many jobs e. the food production is so efficient
The maximum sustainable yield is best defined as the ________.
A. the annual size of the catch that will balance natural death and predation B. highest catch that will pay the minimum cost of the fishing effort C. highest catch that can be taken without overfishing D. maximum fishing effort allowed after overfishing is reached E. minimum catch that will still allow the population to grow
A species' realized niche ________
A) cannot be smaller than its fundamental niche B) is never really realized because it isn't real C) cannot be larger than its fundamental niche D) is the portion of a species' niche that is "taken over" by competing species E) is the niche that a species realizes/experiences in the absence of competition
Ethnonationalist movements have occurred in all of the following, except:
A) South Ossetia B) Tajikistan C) Nagorno-Karabakh D) Chernobyl