WorksheetsSTEM WATER QUALITY UTHM
Total questions: 40
Worksheet time: 25mins
What helps protects the coast from erosion?
Sea wall
Cliffs
Boats
The Amazon River pass through which countries?
Ecuador, Colombia
Venezuela, Bolivia
Brazil
All of them
What is the name of Malaysia's biggest flower?
Daffodil
Rafflesia
Hibiscus
What sea separates mainland Malaysia and the island of Borneo?
Arabian Sea
Black Sea
Caribbean Sea
South China Sea
Soil on Thailand's Central Plain is ideal for growing which crop?
wheat
barley
rice
corn
Which of the following is caused by undersea earthquakes?
typhoons
monsoons
droughts
tsunamis
The Mekong River forms part of the border of which country?
Thailand
Malaysia
Indonesia
the Philippines
A rapid growth of algae could lead to... (Check all that apply.)
A reduction of oxygen levels in the water.
Water that can support more life.
Waters that are devoid of life.
An increase in oxygen levels.
Farmers increase their use of pesticides and herbicides. What type of pollution would this cause?
Sediment
Nutrient
Toxic
Bacterial
Thermal
What percentage of water on Earth is salt water?
1%
3%
70%
97%
What percentage of the Earth's water is in the form of non-frozen fresh water?
1%
3%
70%
97%
Which of these water uses uses the LEAST water?
Drinking
Household Water Use
Industrial Water Use
Agricultural Water Use
Dirt and soil that washes into rivers is called
Gross Pollution
Sediment
Pathogens
Point Source Pollution
Nutrients in rivers lead to ...
Toxic algal blooms
All plant life along river banks dying
Over-oxygenation of the water
Low water temperature
The process of water soaking into soil is called
Transpiration
Runoff
Infiltration
Sedimentation
Which of the following is a 'natural filter'?
Swamps and wetlands
Coral reefs
Fish
Forests
Which of the following is a non-point source of pollution?
A factory dumping chemicals into a river
A discharge coming from a fixed pipe
A waste water plant
Stormwater drains along a road
Which of the following is the EASIEST pollution source to fix through regulation?
Point source pollution
Non Point Source Pollution
- Nile River
- Hieroglyphics
- Pyramids
Sumer
What is a physical parameter for measuring water quality?
BOD5
Methane
Temperature
Nutrients
What type of species are tolerant to organic pollution and low levels of oxygen?
Macroinvertebrates
Microorganisms
Vertebrates
Mammals
What piece of equipment do we use to measure turbidity?
a chemical test
bioidicators
a secchi disk
incision ration
What does a pH of 7 mean?
acid
base
neutral
What is a bio-indicator?
any living creature
eutrophication
An organism sensitive to its environment
a turbidity tube
Which glass contains water with high turbidity?
Glass 1
Glass 2
Why are too many nutrients (like nitrates and phosphates) bad for our waters?
Nutrients decrease the pH of the water, causing it to become increasingly acidic
Nutrients change the salinity of the water
Wetlands filter out runoff that may contain nutrients
Nutrients in the water cause too much algae growth, which decrease the level of oxygen in the water
What is salinity?
The property of containing salt
The amount of suspended solids
Describes the condition of the water
Describes how acidic or basic water is
Which of these is a possible location for point-source pollution?
a large urban area
a factory
a mountain area
a desert biome
Which of these are all steps that can be part of water treatment.
sedimentation, coagulation, aeration, filtration
coagulation, amplification, disinfection, filtration
filtration, eutrophication, floculation, sedimentation
amplification, aeration, filtration, coagulation
aeration, eutrophication, disinfection, sedimentation
What is the term for the movement of water across the Earth's surface,
often leading to rivers, streams, and eventually reaching the oceans?
Evaporation
Condensation
Precipitation
Runoff
