The Gulf Stream has decreased in recent years due to an influx of freshwater. Indicate whether the statement is true or false
ANS: T
The Gulf Stream has decreased by 30% since 1957. There has been an increase in precipitation in
northern latitudes in addition to polar ice melts. Information can be found in the section Thermohaline
Circulation Affects All the Ocean's Water.
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All of the following cell types are particularly prone to damage from mutation-causing agents except
A) brain cells. B) bone marrow cells. C) cells in a developing fetus. D) cancer cells.
The Great Sunflower Project
A) has the goal of restoring native sunflowers to areas in the midwestern United States, where they are now extinct. B) invites local citizen scientists to observe and document pollinators, which are in decline. C) is attempting to preserve flower species by inserting into them genes from other species. D) is the basis of a large organic agriculture project involving flowers with edible seeds.
Everything else being equal, the amount of surface runoff tends to be greater with:
a. more permeable soils. b. lower slopes. c. thicker soils. d. less vegetation. e. larger infiltration capacities
A weather map symbol of a line containing only semicircles that are all located on one side of the line depicts a(n) ____
a. warm front b. occluded front c. stationary front d. cold front e. squall front