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WorksheetsChapter 6 - Humans in the Biosphere
Total questions: 50
Worksheet time: 30mins
Name
Class
Date
1.
1. What do all organisms on Earth share?
a)
Unlimited resources
b)
Limited resources
2.
What is a consequence of negative human interactions with the environment?
a)
degradation of soils
b)
destruction of animal habitats
c)
depleted population of certain fish
d)
all of the above
3.
_______________ is the clearing of forests on a massive scale.
a)
Delimbing
b)
Reforestation
c)
Deforestation
d)
Detreeing
4.
Which of the following is a fossil fuel?
a)
Wind
b)
Coal
c)
Solar
d)
Biomass
5.
Wind, geothermal, and solar energy are all what type of energy resources?
a)
cheap
b)
potential
c)
renewable
d)
chemical
6.
What absorbs ultraviolet rays in the atmosphere?
a)
troposphere
b)
stratosphere
c)
ozone layer
d)
greenhouse gases
7.
Which of these sets of three items produce CFCs
a)
cars, factories, and cardboard
b)
spray cans, cardboard, insulation
c)
spray cans, refrigerant, cardboard
d)
spray cans, refrigerant, insulation
8.
The ozone layer is damaged by
a)
CFCs
b)
Increase in greenhouse gases
c)
Increased global temperatures
d)
Sulfuric and nitric acids
9.
What are two necessities for survival that humans take from ecosystems?
a)
Wood and soil
b)
Clean water and recycled nutrients
c)
Food and lumber
10.
Which is not a major human activity that has had an impact on the biosphere?
a)
Hunting and Gathering
b)
Industrial Revolution
c)
Solar Panel Construction
d)
Agriculture
11.
For most of history, how did humans obtain food?
a)
Agriculture
b)
Hunting and gathering
c)
Barter
12.
Agriculture is defined by planting and raising crops only for food.
a)
True
b)
False
13.
Large-scale _______ turned deserts into fertile farmlands.
a)
Pesticides
b)
Irrigation
c)
Machinery
d)
Fertilizers
14.
New __________ (tractors, planters, etc) helped farmers increase yields.
a)
Irrigation
b)
Pesticides
c)
Fertilizers
d)
Machinery
15.
New varieties of ______ produced higher yields.
a)
Fertilizers
b)
Irrigation
c)
Crops
d)
Pesticides
16.
____ is the practice of farming.
a)
Monoculture
b)
Aquaculture
c)
Pop culture
d)
Agriculture
17.
Chemical ___________ boosted plant growth.
a)
Irrigation
b)
Fertilizers
c)
Pesticides
d)
Machinery
18.
___________ controlled crop-damaging insects.
a)
Pesticides
b)
Fertilizers
c)
Machinery
d)
Irrigation
19.
________ occurs when large fields are planted with a single variety of crop year after year.
a)
Aquaculture
b)
Agriculture
c)
Monoculture
20.
The _______ revolution was an effort in the mid-twentieth century to increase global food production through modern plant breeding and agricultural techniques. pan>
a)
Industrial
b)
Green
21.
The energy to power machinery comes mostly from ____________.
a)
Solar Power
b)
Wind
c)
Fossil Fuels
d)
Nuclear Power
22.
_____________ resources can regenerate if they are alive, or can be replenished by biochemical cycles if they are nonliving.
a)
Nonrenewable
b)
Renewable
c)
Resourceful
d)
Nonessential
23.
A ____________ resource is one that cannot be replenished by natural processes.
a)
Nonrenewable
b)
Renewable
c)
Nonresourceful
d)
Nonessential
24.
Trees are always a nonrenewable resource
a)
True
b)
False
25.
___________ ____________ is a way of using natural resources without depleting them
a)
Wise use
b)
Sustainable Development
c)
Smart Conservation
d)
Intelligent saving
26.
Soil ______ is the wearing away of surface soil by water and wind.
a)
elimination
b)
degrading
c)
erosion
d)
stopping
27.
__________ is the process by which productive areas are turned into deserts.
a)
Erosion
b)
Drying
c)
Desertification
d)
Freezing
28.
____ growth forests are nonrenewable because it takes centuries to produce them.
a)
New
b)
Old
29.
The raising of aquatic organisms for human consumption is known as _____.
a)
Aquaculture
b)
Agriculture
c)
Monoculture
d)
Pop Culture
30.
_________ is a mixture of chemicals that occurs as a gray-brown haze in the atmosphere.
a)
Fog
b)
Smog
c)
Acid Rain
d)
DDT
31.
A ______________ is a harmful material that can enter the biosphere through the land, air, or water.
a)
Pollutant
b)
Pesticide
c)
Fertilizer
d)
Pathogen
32.
Dangerous compounds combine with water vapor to form ______________.
a)
Smog
b)
Clouds
c)
Acid Rain
d)
Harmful rain
33.
__________ is the sum total of the genetically based variety of all organisms in the biosphere.
a)
Biodiversity
b)
Ecosystem diversity
c)
Genetic Diversity
d)
Species Diveristy
34.
______________ includes the variety of habitats, communities, and ecological processes in the living world.
a)
Biodviersity
b)
Ecosystem diversity
c)
Genetic diversity
d)
Species Diversity
35.
_____________ is the number of different species in the biosphere.
a)
Biodviersity
b)
Ecosystem Diversity
c)
Genetic Diversity
d)
Species Diversity
36.
_____________ is the sum total of all the different forms of genetic information carried by all organisms living on Earth today.
a)
Biodiversity
b)
Ecosystem Diversity
c)
Species Diversity
d)
Genetic Diversity
37.
____________ occurs when a species disappears from all or part of its range.
a)
Elimination
b)
Endangering
c)
Extinction
d)
Removal
38.
A species whose population size is declining in a way that places it in danger of extinction is called an _________ species.
a)
exinction
b)
abomination
c)
endangered
d)
excused.
39.
Development often splits ecosystems into pieces, a process called habitat _________.
a)
fragmentation
b)
fissuring
c)
faulting
d)
fracturing
40.
What is the name of the pesticide that almost drove bald eagles to extinction?
a)
PCB
b)
CFC
c)
ATC
d)
DDT
41.
DDT is ____________, which means that it cannot be broken down by organisms.
a)
toxic
b)
nonbiodegrable
c)
plastic
d)
tough
42.
Once DDT is picked up by organisms, it cannot be ____________from their bodies
a)
eliminated
b)
saved
c)
taken
43.
In _____ concentrations of a harmful substance increase in organisms at higher trophic levels in a food chain or food web.
a)
pesticide use
b)
fragmentation
c)
predation
d)
biological magnification
44.
___________species are introduced species that reproduce rapidly because their new habitat lacks the predators that would control their population.
a)
Native
b)
Invasive
c)
Annoying
d)
Parasite
45.
The _____ layer is found between 20-50 kilometers above Earth's surface and contains a high concentration of ozone gas.
a)
greenhouse
b)
UV
c)
ozone
d)
pollution
46.
The ozone layer absorbs a good deal of harmful ______________ radiation from sunlight before it reaches Earth's surface.
a)
superpurple
b)
ultraviolet
c)
pollution
d)
greenhouse
47.
Exposure to UV radiation can cause cancer.
a)
True
b)
False
48.
The use of _____s caused a hole in the ozone layer.
a)
DDT
b)
PCB
c)
ATR
d)
CFC
49.
The term used to describe the increase in the average temperature of the biosphere is ______________.
a)
global warming
b)
climate changing
c)
temperature burning
d)
greenhouse gasses
50.
The burning of ____________, along with the cutting and burning of forests, adds carbon dioxide to the atmosphere faster than the carbon cycle removes it.
a)
Trees
b)
Tires
c)
Fossil Fuels
d)
Leaves
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