Environmental Science Test

What is the process called where air (oxygen) is added to water during treatment?

• Biomass

• Incineration

• Aeration

• Filtration

Answer explanation

The process of adding air (oxygen) to water during treatment is called aeration. This process helps to improve water quality by promoting the breakdown of pollutants and enhancing the growth of beneficial microorganisms.

What term describes the total amount of living material in a given area?

• Aeration

• Biomass

• Incineration

• Photosynthesis

Answer explanation

The term 'biomass' refers to the total amount of living material in a given area, including plants, animals, and microorganisms. It is a key concept in ecology and environmental science.

What is the process of using a furnace to burn garbage and other waste materials?

• Composting

• Incineration

• Recycling

• Aeration

Answer explanation

The process of using a furnace to burn garbage and other waste materials is called incineration. This method reduces waste volume and can generate energy, distinguishing it from composting, recycling, and aeration.

What does the term "inexhaustible" mean?

• Able to be used up completely

• Existing in abundance

• Limited in supply

• Rarely found

Answer explanation

The term "inexhaustible" means something that cannot be used up or is available in abundance. Therefore, the correct choice is "Existing in abundance," as it reflects the idea of an endless supply.

What is a landfill?

• A site where waste is burned

• A disposal site where solid waste is buried between layers of dirt

• A recycling center

• A composting facility

Answer explanation

A landfill is specifically a disposal site where solid waste is buried between layers of dirt, which helps manage waste and reduce environmental impact. This distinguishes it from burning, recycling, or composting facilities.

What is litter?

• Large waste containers

• Pieces of garbage scattered on the ground in a public place

• Recyclable materials

• Organic waste

Answer explanation

Litter refers to pieces of garbage scattered on the ground in public places, which can harm the environment and detract from the beauty of the area. The other options do not accurately define litter.

What causes smog?

• Rain and wind

• Sunlight reacting with hydrocarbons and nitrogen compounds

• Ocean currents

• Volcanic eruptions

Answer explanation

Smog is primarily caused by sunlight reacting with hydrocarbons and nitrogen compounds in the atmosphere, leading to the formation of ground-level ozone and particulate matter, which contribute to poor air quality.

What is solar energy?

• Light energy from the sun.

• Heat energy from the earth.

• Chemical energy from plants.

• Mechanical energy from wind.

Answer explanation

Solar energy refers to the light energy emitted by the sun, which can be harnessed for various uses, such as electricity generation and heating. The other options describe different forms of energy not related to solar energy.

Tags

NGSS.MS-LS1-6