Please pa help naman po
1. It is a material produced naturally or artificially that harms the environment.

agent

pollutant

trash

toxic chemical


2. This happens when there is a sudden unfavorable change in the characteristics of air, water, and land.

contamination

ecological imbalance

impurity

pollution


3. Carbon dioxide is a pollutant found in ____.

Air

Radiation

Soil

Water


4. Which of the following best describes biodegradable pollutants?

An example of this material is domestic sewage.

A massive quantity of these materials causes harm to the environment.

These are materials that decompose slowly through natural or artificial methods.

A material that quickly decays and piles up and may result in damaging the ecosystem.


5. The following are example of non-degradable pollutant except:

DDT

Metallic oxides

paper

salt


6. It is a fog combined with smoke and other chemical fumes. *

dirty smoke

exhaust gas

smog

vapor


7. They are a combination of substances emitted directly from various sources. *

biodegradable pollutants

non-degradable pollutants

secondary pollutants

tertiary pollutants


8. It is the sum of all solid and liquid particles suspended in air many of which are hazardous. This complex mixture includes both organic and inorganic particles.

Dust

Pollen

Smoke

Particulate Matter


9. This pollutant was developed as the first of the modern synthetic insecticides in the 1940s. It was effective for insect control in crop and livestock production, institutions, homes, and gardens.

DDT

Decis

Malathion

Nurelle


10. It is a brownish-gray haze caused by the action of solar ultraviolet radiation on atmosphere polluted with hydrocarbons and oxides of nitrogen.

Smoke

Fog

Smog

Photochemical smog