ENVIRONMENTAL PROBLEMS

the development without damaging the environment or wasting natural resources

• eco-friendly production

• sustainable development

• hostile development

• green manufacturing

O₃ is the formula of ...

• carbon dioxide

• oxygen

• ozone

• dioxygen

The decrease in the amount of O₃ in the atmosphere is...

• ozone layer

• ozone formation

• ozone decrease

• ozone depletion

The rain that contains harmful chemicals

• hail

• shower

• drizzle

• acid rain

Answer explanation

Mưa acid

waste gases that come out of a vehicle, an engine or a machine

• exhaust fumes

• perfumes

• greenhouse gases

• garbage fumes

"Pb" is the symbol of .... in the periodic table of chemicals.

• Phosphorus

• Lead

• Boron

• Platinum

The process of getting rid of waste

• waste recycle

• waste restriction

• waste disposal

• waste collection

the process by which land changes to a worse condition

• land degradation

• land erosion

• land contamination

• land pollution

the variety of all living forms (animals & plants) in a place

• eco-system

• environment

• habitat

• biodiversity

a synonym of "pollution"

• contamination

• degradation

• depletion

• exploitation