Earth Science Chapter 4

Which of these natural resources do people make to use glass?

• oil

• sand

• coal

• steel

Which of the following is a renewable resource?

• steel

• wood

• glass

• concrete

Which of these is the best way to recycle glass?

• glue broken pieces together

• melt and reform the glass

• shape and cool melted sand

• wash it and use it for another purpose

Used steel can be melted down and reformed into beams for buildings. This form of recycling

• is destructive to the environment.

• uses up more energy than is needed to make new steal.

• clogs landfills with lots of old materials.

• helps prevent Earth's resources from running out.

Which of these is the source of most of the energy humans use today?

• the sun

• biomass

• wind

• fossil fuels

Which of these are examples of renewable resources?

• wind and coal

• sun and wind

• coal and sun

• oil and coal

What is the main disadvantage of using biomass as a source of energy?

• Farmland is used to make fuel instead of food

• some biomass fuels have bad smells

• plant take longer time to grow

• biomass has to be grown in order to be replaced

Which of these is a main reason water is an important resource?

• it is beautiful to watch

• it is found in many places

• it is used for food and transportation

• it is fun to swim in, play in, and sail on

How can metal be recycled?

• It can be taken from ores.

• It can be melted and reshaped.

• It can be make into steel beams.

• It can be combined with other substances.

Which energy resource for heating a house conserves resources?

• solar power

• natural gas

• coal

• oil