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ESENVI30-SW NO. 4-WATER

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

These contribute to the eutrophication of lakes and rivers. They are commonly used as fertilizers, can enhance algal bloom and later on change the state of the body of water.

a)

Sugar Mills waste

b)

Nitrate and Phosphate

c)

Sodium and Calcium

d)

Mining wastes

2.

coliform bacteria, janitor fish and water lilies are examples of?

a)

Detergents

b)

Mine tailings

c)

Biological Pollutants

d)

Eutrophication's plants

3.

It is phenomenon wherein there is an unusual discoloration in a body of water specially the ocean. This is caused by the proliferation of alga or alga bloom.

a)

Red tide Menance

b)

Tidal waves

c)

Oil Spill

d)

None of the above

4.

These are substances that can lead to the contamination of water bodies, often originating from agricultural runoff and industrial discharges.

a)

Heavy Metals

b)

Pesticides

c)

Plastic Waste

d)

All of the above

5.

This term refers to the process by which excess nutrients in water bodies lead to increased growth of algae, which can deplete oxygen levels and harm aquatic life.

a)

Oligotrophication

b)

Eutrophication

c)

Desalination

d)

Bioremediation

6.

These organisms are often used as indicators of water quality and can indicate the presence of fecal contamination in water bodies.

a)

Protozoa

b)

Coliform Bacteria

c)

Phytoplankton

d)

Zooplankton

7.

aims to encourage industries to conduct voluntary self-regulation among establishments and to reduce pollution beyond compliance

a)

BEACH ECOWATCH

b)

TAP WATCH PROGRAM

c)

Sagip Ilog Program

d)

None of the Above

8.

This process involves the introduction of harmful substances into water bodies, leading to degradation of water quality and potential harm to aquatic ecosystems.

a)

Water Pollution

b)

Water Conservation

c)

Water Filtration

d)

Water Management

9.

This term describes the phenomenon where a significant increase in nutrient levels in water bodies leads to excessive growth of aquatic plants and algae, often resulting in oxygen depletion.

a)

Oligotrophication

b)

Eutrophication

c)

Hypoxia

d)

Acidification

10.

These are microscopic organisms that play a crucial role in aquatic ecosystems and can be used to assess the health of water bodies.

a)

Phytoplankton

b)

Zooplankton

c)

Bacteria

d)

All of the above

11.

Most of the water on earth, ___ to be exact , is saltwater found in the oceans. Only about___of earth’s water is fresh, and 2% of the earth’s water (about 66% of all fresh water) is in solid form, found in ice caps and glacier.

a)

97%, 3%

b)

98%, 2%

c)

99%,1%

d)

96%, 4%

12.

_____source of water pollution, sources such as agricultural activities.

a)

point

b)

non-point

c)

known

d)

unknown

13.

This term refers to the gradual increase in the temperature of water bodies, often due to human activities, which can adversely affect aquatic life.

a)

Thermal Pollution

b)

Water Warming

c)

Climate Change

d)

Heat Stress

14.

Name of your professor for this course- ESENVI30

a)

Engr. Analyn Bilog

b)

Engr. Analyn G. Balog

c)

Engr. Analyn Balog

d)

Engr. Analyn B. Balog

15.

Which of the following practices can help reduce water pollution?

a)

Using chemical fertilizers

b)

Implementing sustainable farming

c)

Disposing waste in water bodies

d)

Increasing plastic usage

16.

for drinking water quality should always include, as a minimum, tests for total organisms of the coliform group, which are indicative of fecal contamination or sewage pollution

a)

Bacterial Examination

b)

Chemical Examination

c)

Physical Examination

d)

Mechanical Examination

17.

is due to suspended material such as clay, silt, or organic and inorganic materials.

a)

Color

b)

turbidity

c)

odor

d)

temperature

18.

•The wastewater from water closet and latrine or aqua privy flushing is referred to as ______.

a)

gray water

b)

blue water

c)

green water

d)

black water

19.

Most of the water on earth, 97% to be exact , is saltwater found in the oceans. Only about ____ of earth’s water is fresh, and 2% of the earth’s water (about 66% of all fresh water) is in solid form, found in ice caps and glacier.

a)

3%

b)

5%

c)

1%

d)

10%

20.

The following are consider as Fresh water except:

a)

Lake

b)

River

c)

Streams

d)

ocean