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Total questions: 14
Worksheet time: 43mins
Every day, humans all around the world use energy. They use energy to drive vehicles, heat and cool buildings, operate appliances, and manufacture products.
The graph below shows global energy use per year from 1965 to 2015. Energy use is measured using the unit terawatt-hours (TWh).
Select the statement that is supported by the data.
Humans used about the same amount of energy each year between 1965 and 2015.
Global energy use increased most years between 1965 and 2015.
Most of the energy that humans use comes from natural energy resources called fossil fuels. Fossil fuels include coal, petroleum, and natural gas.
Fossil fuels formed over millions of years as dead organisms were buried under mud, rock, and sand. Eventually, heat and pressure transformed these dead organisms into fossil fuels.
Because fossil fuels formed very slowly millions of years ago, they are nonrenewable resources. Nonrenewable resources are natural resources that cannot be replaced as quickly as they are used.
Which of the following statements explains why fossil fuels are nonrenewable resources?
Fossil fuels from underground more quickly than they are used by humans.
It takes millions of years for fossil fuels to form.
The graph below shows the global use of fossil fuels and other energy resources every year from 1965 to 2015.
Use the data to complete the statement.
Between 1965 and 2015, people obtained _____________ of their energy from fossil fuels.
about one-fifth
at least four-fifths
Global energy use has changed over time. To understand one reason why, look at how the global population has changed.
The first graph below shows the global population from 1965 to 2015. The second graph shows the global use of fossil fuels and other energy resources every year from 1965 to 2015.
Select the statement that is supported by the data.
Between 1965 and 2015, the global population increased steadily every year. Energy use increased almost every year.
Between 1965 and 2015, both the global population and energy use increased every year
Look at the same graphs. Notice how the global population and global energy use have increased over time.
Use the data to complete the statements.
Between 1965 and 2015, the global population roughly ________. During the same period of time, global energy use roughly _________.
tripled ... doubled
doubled ... tripled
Look at the same graphs. Notice how the global population and global energy use have increased over time.
Use the data to complete the statements.
So, ___________ increased faster than ___________.
the population ... energy use
energy use ... the population
The average amount of energy used by each person is called per capita energy use. To calculate per capita energy use, divide energy use by the population. Per capita energy use can increase or decrease depending on how energy use and population change:
- Per capita energy use increases when energy use increases faster than the population. This can happen when technologies that use energy, such as cars and electronic devices, become more common.
- Per capita energy use decreases when the population increases faster than energy use, usually because people use less energy to do the same activities.
Between 1965 and 2015, how did per capita energy use change?
Per capita energy use decreased.
Per capita energy use increased.
Earth's plates meet at ____________.
plate tectonics
plate boundaries
continental drift
oceans
Breaks in the crust called __________ form where plates meet.
mountains
rift valleys
faults
trenches
Plates slide past each other at _________________ boundaries.
divergent
convergent
transform
universal
Plates slide apart along _____________ boundaries.
convergent
divergent
transform
universal
Which feature forms at convergent boundaries?
trench
rift valley
mountain range
mid-ocean ridge
