[n. ph] The need for something in the world

[adj] Something that is easily within your budget

Give examples of two types of fossil fuel

Complete the expression: "Good _____ for money"

[noun] The act of getting rid of the items that are no longer needed

[noun] Written legal agreement

[n. ph.] An improvement in financial conditions

[n. ph.] The amount of carbon dioxide released into the atmosphere as a result of the activities of a particular individual, organization, or community

[n. ph.] An increase in the number of people

[verb] To calculate or judge the value, number, quantity, or extent of something

[verb] Treat or modify a substance

[n. ph.] The long-term heating of Earth's climate system due to human activities

[noun] The process that enables people to re-use old components and materials