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WorksheetsHuman Interaction on the Environment
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
A type of farming used when the terrain is particularly hilly or steep is called _____________.
a)
commercial farming
b)
residential farming
c)
terrace farming
d)
valley farming
2.
______________ is changing of the environment producing harmful conditions to living organisms.
a)
Recycling
b)
Deforestation
c)
Collecting
d)
Pollution
3.
A chemical substance with a pH less than 7, a corrosive or sour-tasting liquid is ____________.
a)
an acid
b)
a base
c)
neutral
d)
a pH
4.
A chemical substance that is neither acidic or basic is _______________.
a)
an acid
b)
a base
c)
neutral
d)
a pH
5.
A chemical substance with a pH greater that 7, a bitter-tasting liquid is _______________.
a)
an acid
b)
a base
c)
neutral
d)
a pH
6.
Rain or precipitation that is unusually acidic and can be harmful to plants & animals is _____.
a)
acid rain
b)
algae bloom
c)
fertilizer
d)
pollution
7.
A chemical or natural substance added to soil or land to increase its fertility is called ____.
a)
acid rain
b)
algae bloom
c)
fertilizer
d)
pollution
8.
A numeric scale used to specify the acidity or alkalinity of an aqueous solution is a ________.
a)
acid
b)
neutral
c)
base
d)
pH scale
9.
A substance that pollutes something, especially water or the atmosphere is called ____________.
a)
terrace farming
b)
a pollutant
c)
a collection
d)
an algae bloom
10.
A rapid increase in the population of algae & is recognized by a discoloration of water is ___.
a)
acid rain
b)
an algae bloom
c)
fertilizer
d)
a pollutant
11.
Our stomach ________ is as strong as the _______ in a car battery.
a)
acid, acid
b)
acid, base
c)
base, base
d)
base, acid
12.
Fossil fuels are a difficult pollutant to manage because humans rely heavily on _____ and ____.
a)
tvs, radios
b)
cars, trucks
c)
vehicles, engines
d)
computers, ipads
13.
Burning fossil fuels releases harmful gases that will cause _______________.
a)
an algae bloom
b)
acid rain
c)
deforestation
d)
over-fertilization
14.
Which of the following is NOT a reason for recycling waste?
a)
to develop acid rain
b)
to reduce pollution
c)
to reduce wastage of materials
d)
to get more fertilizers for plants
15.
The use of plastic materials adds to the pollution of the environment because _______.
a)
they take a very long time to decompose
b)
they produce harmful gases when burnt
c)
both answers
d)
neither answer
16.
Land pollution can be reduced by ______________.
a)
incinerating trash
b)
using organic pesticides in farming
c)
both answers
d)
neither answer
17.
Which of the following does NOT happen to organisms when the environment becomes unfavorable?
a)
Organisms continue live as normal.
b)
They may die.
c)
They could become extinct.
d)
Organisms move to another place.
18.
Which of the following can cause harm on marine life?
a)
weed killers
b)
insecticides
c)
both answers
d)
neither answer
19.
What method would cause the least ecological damage to control the mosquito population?
a)
draining the swamps where mosquitoes reproduce
b)
spraying swamps with chemical pesticides to kill mosquitoes
c)
spraying oil over swamps to suffocate mosquito larvae
d)
increasing populations of native fish to eat the mosquitoes
20.
Vinegar has a pH of 2 and black coffee has a pH level of 5. Which is the stronger acid?
a)
vinegar
b)
black coffee
21.
Use the pH scale pictured. Which of the following is the strongest acid?
a)
bananas
b)
tomatoes
c)
grapes
d)
lemons
22.
Soap has a pH of 12 and toothpaste has a pH of 9. Which would be the stronger base?
a)
toothpaste
b)
soap
23.
Blood has a pH of 7. So blood is considered __________.
a)
an acid
b)
a base
c)
neutral
24.
Use the pH scale pictured. Which of the following is the strongest base?
a)
eggs
b)
baking soda
c)
ammonia
d)
bleach
25.
Use the pH scale pictured. Which of the following is considered neutral?
a)
milk
b)
pure water
c)
soap
d)
oven cleaner
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