24 - 25 MRJH Science Spring Final Review

24 - 25 MRJH Science Spring Final Review

By Myra Lopez

Multiple Choice

As the population increases, the demand for energy increases. One of the best ways to manage our current energy resources is through ___.

• Irrigation

• conservation

• erosion

• weathering

Multiple Choice

Mrs. Smith wants to save energy in his household. What action would save energy in her house?

• Leaving the water running when she brushes her teeth.

• Turning off the air conditioner when she is not home.

• Leaving the bedside lamp on while she sleeps.

• Leaving the television on when she is not home.

Multiple Choice

The class was investigating changes in the water cycle. Students were taking turns collecting water from the sink. What should the students do to conserve water during their investigation?

• Get more water than they need.

• Turn the water off after each student.

• Make the water flow faster.

• Pour extra water down the sink.

Multiple Choice

How can resource management help achieve long-term food security?

• It makes sure that all agricultural land is used only for industrial farming.

• It allows the overuse of any resource to meet immediate food needs.

• It encourages sustainable farming techniques and protects resources such as soil and water.

• It only focuses on increased food production without considering environmental impacts.

Multiple Choice

Can resource management prevent food shortages and reduce the risk of malnutrition?

• Yes, by ensuring that agricultural resources such as water and soil are used efficiently.

• No, because food shortages are caused by overpopulation and are unaffected by resource management.

• Yes, by reducing agricultural production to minimize the impact on the environment.

• No, resource management has no impact on food security.

Multiple Choice

Which of the following is an advantage of effective resource management of energy resources?

• increased energy usuage

• higher costs for energy resources

• decreased accessibility to energy resources

• reduced global energy demand

Multiple Choice

Which of the following does NOT contribute to water pollution.

• farming

• watering plants

• highly populated areas

• industrial waste

Multiple Choice

In some areas of Texas, suburbs are growing into areas that were once used for manufacturing. These manufacturers are now making changes to the amount of waste products that are sent into the air. Is is now important to protect air quality because __.

• decreasing air pollution can cause more violent thunderstorms.

• air pollution changes the wind currents in an area

• the amount of energy produced by the Sun increases when there is more air pollution

• people's health and ability to be active is impacted by air pollution

Multiple Choice

Many coastal areas that are dependent on fishing for their local economies have struggled recently because of overfishing. Scientists have been working with these communities to reestablish the fish populations.

Which of the following would NOT be a recommendation of the scientists to help the local communities?

• Create an artificial reef so the fish will have a habitat

• Fishing limits to limit the amount of fish caught

• Introduce non-native fish to the environment

• Fisheries to release fish into the environment

​We use energy resources to power our homes, businesses, vehicles, and electronic devices. Most of the energy resources we use are fossil fuels, or energy-rich substances formed from the remains of organisms that lived millions of years ago.

Examples of fossil fuels include coal, oil, and natural gas. Other main energy resources include solar, water, wind , and nuclear energy.

What are energy resources?

Multiple Choice

A lot of people are trying to conserve natural resources by using new technology. One of the new technologies is solar power. Which of the following natural resources would solar power have the most direct effect on for the conservation of natural resources?

• Fossil fuels

• Soil

• Air

• Animals

Multiple Choice

What is the difference between energy efficiency and energy conservation?

• Efficiency means using less energy by turning things off; conservation means using better machines.

• Efficiency means using energy wisely with better technology; conservation means using less energy by changing behavior.

• Efficiency and conservation mean the same thing.

• Efficiency means using more energy quickly; conservation means storing energy.

Match

Match the following terms to the definition

• The lack of proper nutrition, caused by not having enough to eat, not eating enough of the right things, or being unable to use the food that one does eat is called

• The number of individuals born in a population in a given amount of time is called

• The ratio of the useful work performed by a machine or in a process to the total energy used is called

• The prevention of wasteful use of a resource is called

• The ratio between deaths and individuals in a specified population and time period is called

malnutrition

birth rate

efficiency

conservation

death rate

• malnutrition

• birth rate

• efficiency

• 
  conservation

• death rate

Fill in the Blank

The presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects is called

Word Bank:

efficiency, malnutrition. pollution

Multiple Choice

The average period that a person may expect to live is called ___________________.

• pollution

• life expectancy

• malnutrition

• efficiency

Multiple Choice

When an area's death rate gets higher than its birth rate, its population will _____________________.

• get bigger

• get smaller

• stay the same

• instantly disappear