Buy Humans Release Of Excess Phosphates Essay

Buy Humans Release Of Excess Phosphates Essay
Buy Humans Release Of Excess Phosphates Essay
41. Evaporation involves the conversion of
(A) latent heat into solar energy
(B) solar energy into latent heat
(C) chemical energy into solar energy
(D) potential energy into kinetic energy
42. Ecologists divide the open ocean into the euphotic zone, the bathyal
zone, and the abyssal zone based mostly on
(A) the creatures that live in each
(B) the amount of sunlight that each receives
(C) the salinity of each
(D) the temperature of each
43. In which freshwater lake zone would you expect to find the greatest
concentration of waterborne plants?
(A) the benthic zone
(B) the profundal zone
(C) the limnetic zone
(D) the littoral zone
Buy Humans Release Of Excess Phosphates Essay
44. If the residence time of N2 is 400 million years, then
(A) fusion reactions first created the N2 400 million years ago
(B) each molecule of N2 remains chemically unchanged for an
average of 400 million years
(C) nitrogen’s total duration as a nitrate and as a nitrite is an
average of 400 million years
(D) no molecule of N2 lasts longer than 400 million years
45. Warm Caribbean water travels north past Canada to Northern
Europe in the
(A) Equatorial Countercurrent
(B) Humboldt Current
(C) Labrador Current
(D) Gulf Stream Current
Living World: Ecosystems ❮ 31
46. Of the following pairs of ecosystems, which has the highest net
primary productivity?
(A) swamps and estuaries
(B) woodland and agricultural land
(C) savannas and coniferous forests
(D) open ocean and tundra
47. Which of the following trophic levels contain animals that eat
I. tertiary consumers
II. secondary consumers
III. primary consumers
IV. producers
(A) I and II
(B) II and III
(C) III and IV
(D) I and III
48. Most terrestrial phosphate originates from
(A) freshwater lakes
(B) uplifted rock
(C) phosphate-fixing bacteria
(D) the air
49. Humans’ release of excess phosphates into lakes and rivers can
result in
(A) the poisoning of herbivores
(B) phosphate-based gases depleting the ozone layer
(C) acid rain
(D) the overgrowth of aquatic bacteria and algae
Buy Humans Release Of Excess Phosphates Essay
32 ❯ 500 AP Environmental Science Questions to Know by Test Day
50. In which of the following nutrient cycles does the key nutrient
remain chemically unchanged throughout?
(A) the sulfur cycle
(B) the nitrogen cycle
(C) the hydrologic cycle
(D) the phosphorus cycle
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