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WorksheetsGr 8 - Floods,Hunger,Rivers,Freshwater
Total questions: 35
Worksheet time: 30mins
What is the relationship between flooding and earthquakes? Choose the best answer.
Earthquakes usually break large water pipes, flooding entire states.
Undersea earthquakes can cause huge ocean waves, which flood shorelines.
Earthquakes break open underground springs, which flood large areas.
Floodwaters often seep into fault lines, causing earthquakes.
Floods happen when _______________________________________________.
too much snow and winds are present.
too much rain in a short period of time.
too much rain in mountains.
the weather is cold.
Water overflow happens when a _ can not receive all the water after the rain.
Mountain
River
Street
Sea
What is presented in the picture?
Tsunami
Earthquake
Hurricane
Drought
What is flood management?
Modification measures aim to reduce flood levels
Process used to convert wastewater
Strategy is to reduce water use
Land use practices and water management practices
List any two benefits that floods may have.
How are tsunami waves formed?
How are flash floods formed, and why are they dangerous?
Identify two causes of hunger in the world.
Where is the vast majority of the water on Earth stored?
Identify the difference between the developing and developed countries.
A sudden local flood, typically due to heavy rain.
Flash flood
Flood
Tsunami
Drought
A large wave created by an underwater earthquake is called a __________________.
Earthquake
Tsunami
Flood
..............................................is an overflow of a large amount of water beyond its normal limits, especially over what is normally dry land.
Earthquake
Wildfire
Flood
The negative impact following an actual occurrence of a natural hazard that significantly harms a community is called
natural resource
natural disaster
natural environment
community
Imbalance of essential nutrients or impaired nutrient utilization.
Malnutrition
Under-nourishment
Hunger
What is a wall across a river that controls the flow of river water?
Dam
Wall
Pavement
How much of the Earth's surface is covered with water?
97%
3%
71%
0.3%
. ____________________ is an artificial process by which saline water is converted to fresh water.
Desalination
Freshwater
Salty water
Photosynthesis
What type of flood can be caused by strong winds?
Coastal floods
flash Floods
tsunami
What areas are most vulnerable to tsunamis?
State any 3 causes of global hunger
How can we solve hunger problems? Give 2 points
Give any 4 supplies of Freshwater
What is the term for the point where a river empties into a larger body of water, such as an ocean or a sea?
mouth
source
confluence
Which of the following describes the flow of a river?
sideways
downstream
upstream
S-shaped river valleys are known as:
estuary
meanders
confluence
What happens to the speed of a river as it nears its mouth?
It remains constant
It slows down
It reverses direction
Which of the following is NOT a feature commonly found along a river's course?
meander
volcano
estuary
. What is the term for the process by which a river erodes its banks and bed, causing the channel to widen and deepen over time?
Deposition
Erosion
Sedimentation
. What is the term for a small river or stream that flows into a larger river?
mouth
source
tributary
_________________ occur when water pressure causes a natural flow of groundwater into the earth's surface.
delta
spring
estuary
Why river is slowing down in the middle course?
What process is responsible for eroding away the material in the river valley in the upper course of a river?
. How can we defend ourselves from a tsunami? Provide two examples.
