Question

64. Minerals in rocks are considered what typeof component of a chemical cycle? (Points : 1.25)

reservoir
exchange pool
biotic community
biotic
none of these

Question 65.65. Are humans capable ofupsetting global biogeochemical cycles with their activities?(Points : 1.25)

YES
NO

Question 66.66. There is more nitrogen gas inthe atmosphere than there is oxygen. (Points : 1.25)

TRUE
FALSE

Question 67.67. Which of the following is notan effect of global warming? (Points : 1.25)

rise in sea level
expansion of forests inthe temperate zones
melting of glaciers
wetter coastalregions
flooding of coastalagricultural land

Question 68.68. Cultural eutrophication can becaused by (Points : 1.25)

respiration andtranspiration.
mercury from industrialsources.
bacteria and viruses fromsewage and barnyard waste.
detergents, fertilizers,and sewage treatment plants.
biologicalmagnification.

Question 69.69. How is the nitrogen cycle likethe carbon cycle? (Points : 1.25)

Both are gaseouscycles.
Both requirephotosynthesis to utilize the chemical.
Both are lost to theatmosphere during cellular respiration.
Both are stored in fossilfuels.
Neither has a reservoirin nature.

Question 70.70. Decomposers perform a valuableservice because they recycle nutrients. (Points : 1.25)

TRUE
FALSE

Question 71.71. In MDCs, many people do noteat enough protein. (Points : 1.25)

TRUE
FALSE

Question 72.72. What do hydropower and windpower have in common? (Points : 1.25)

Both require the buildingof dams.
Both lead to an increasein greenhouse gas emissions.
Both are renewable energysources.
Both result in thedepletion of fossil fuels.
Both require the use ofphotovoltaic cells.

Question 73.73. Define an ecologicalfootprint. (Points : 1.25)

the total amount ofresources used by an individual to meet their needs
the amount of food aperson needs to eat
the amount of water aperson needs to meet their needs
the amount of land aperson needs to provide a place to live
the amount of energy aperson needs to meet their needs

Question 74.74. Which of the following is nota sustainability practice designed to conserve water? (Points :1.25)

use sediment traps forstorm drains
use low-flow or trickleirrigation
build retentionponds
use nonporous surfacesfor parking lots
use green roofs