7th Grade: Topic 7-Human Impacts on the Environment

The number of people born per 1,000 individuals for a certain period of time

• Population

• Exponential Growth

• Death Rate

• Birth Rate

The number of deaths per 1,000 individuals in a certain period of time

• Death rate
• Survival rate
• Fatality rate
• Mortality rate

A rate of change that increases more and more rapidly over time

• Linear growth
• Exponential growth
• Arithmetic growth
• Logarithmic growth

Contamination of Earth's land, water, or air through the release of harmful substances into the environment

• contamination
• pollution
• toxicity
• degradation

A condition in which the number of humans grows beyond what the available resources can support

• Overpopulation
• Overcrowding
• Underpopulation
• Undercapacity

The practice of using less of a resource so that it can last longer

• depletion
• wastage
• conservation
• exhaustion

The practice of allowing renewable resources time to recover and replenish

• Unsustainable Use

• Non-renewable Use

• Irresponsible Use

• Sustainable Use

A specific source of pollution that can be identified

• Point Source

• Car wash
• Bakery selling bread
• School playground

A widely spread source of pollution that is difficult to link to a specific point or origin

• Direct source

• Point source

• Non-point source

• Specific source

Pollutants that are released into the air

• Air contaminants
• Atmospheric pollutants
• Pollution in the air
• Emissions