Science Unit Test

How do alternate energies like wind turbines and solar panels reduce air pollution?

They provide clean energy alternatives to fossil fuels.

What is artificial eutrophication?

The accelerated enrichment of a water body with nutrients due to human activities, negatively impacting the ecosystem.

What are sources of indoor pollution?

Indoor air pollution comes from various sources, including carbon monoxide, radon, volatile organic compounds (VOCs), mold, and particulate matter.

What is the difference between point source and non-point source pollution?

Point source pollution originates from a single, identifiable source, while non-point source pollution comes from multiple, diffuse sources.

What is deforestation?

The clearing or destruction of large areas of forest, often for agriculture, urbanization, or logging.

What is the atomic number of an atom?

The number of protons in its nucleus, which defines the element.

What gases cause a greenhouse effect?

The primary greenhouse gases are water vapor, carbon dioxide, methane, and nitrous oxide.

What caused the depletion of ozone in the atmosphere?

The release of ozone-depleting substances (ODS), primarily CFCs and other halocarbons.

What are some negative aspects of urbanization?

Environmental degradation, increased crime and inequality, and health problems from pollution and poor infrastructure.

What is the mass number of an atom?

The total number of protons and neutrons in its nucleus.

How can an increase in nutrients in a water source have a negative effect?

It can lead to eutrophication, which harms aquatic ecosystems.

What kinds of health problems can be caused by air pollution?

Respiratory diseases, cardiovascular diseases, and certain cancers.

What are some ways to measure air quality?

Air quality is typically measured using the Air Quality Index (AQI).

What substances make up smog?

Ground-level ozone, particulate matter, nitrogen oxides, sulfur oxides, and volatile organic compounds.

What is the definition of a half-life?

The time taken for the radioactivity of a specified isotope to fall to half its original value.

What are particulates?

Small solid or liquid particles in the air that can be harmful to health.

What factors can contribute to soil erosion?

Water and wind are the main causes of soil erosion, carrying away exposed soil particles.

What is land degradation?

The process where land becomes less productive, impacting its ability to support vegetation.

What are the different parts of an atom, and where are they located?

Protons and neutrons are in the nucleus, while electrons orbit the nucleus.

What are some sources of chemical pollution?

Industrial activities and everyday household products.

What are some natural sources of air pollution?

Volcanic eruptions, wildfires, forest fires, dust storms, mining activities, and fossil fuel burning.

What are some human sources of air pollution?

Burning fossil fuels for energy and transportation, industrial emissions, and certain consumer products.

What happens to daughter isotopes as parent isotopes decay?

The number of daughter isotopes increases as parent isotopes decay.

How does using fossil fuels contribute to land pollution?

Through extraction processes such as mining and drilling that degrade land and release pollutants.

What is an object with a pH less than 7 known as?

An acid.

How is carbon dioxide related to global temperature changes?

CO2 is a greenhouse gas that traps heat in the atmosphere, contributing to global warming.

What are some consequences of taking too much water from an aquifer?

Groundwater depletion or overdraft, leading to serious environmental impacts.