HIOE test

Hey s

Most of Earth's water (about 97%) is - salt water in the oceans

One group of gasses that is responsible for destroying ozone in the ozone layer is - CFCs

To create less waste in the first is to - Reduce

A type of landfill designed to hold municipal solid waste safely is - sanitary landfill

The process of restoring an area of land to a more natural, productive state is - land reclamation

The study of natural processes in the environment and how humans can affect them is called - environmental science

Which of the following is considered a renewable resource? - Sunlight

Which of the following is a point source of pollution? - An oil spill from a truck

Which of these is NOT an essential natural resource that humans depend on for survival and for development? - gold

Using land to grow food crops is an example of - Agriculture

Chemicals that kill crop-destroying organisms are called - pesticides

The water and human wastes that are washed down sinks, showers, and toilets are called - sewage

Water that causes erosion picks up - sediments

Filters and settling tanks remove solid materials from wastewater during the - Waste treatment step

People cannot use most of the freshwater on Earth because it is in the form of \______ - Ice

The ozone layer is important because it helps to screen out harmful - Uv radiation

Three general categories of environmental issues are related to pollution, resource use, and - population growth

A low level of resource use means a larger ecological footprint. - false, higher ecological footprint

Metals and minerals are renewable ocean resources. - False

The water and human wastes that are washed down sinks, toilets, and showers are called sewage. - True