The introduction of contaminants into the natural environment that cause adverse change is called:
Preservation
Pollution
Pollination
Pollinosis
When the air contains gases, dust, fumes or odour in harmful amounts, it is called:
Water pollution
Air pollution
Soil pollution
Noise pollution
Noise pollution can be reduced by:
By keep the volume of the music we listen to and the television low at home
By not allowing factories to pour their dirty chemicals into water bodies
By treating sewage before being released into water bodies
By using natural fertilizers to grow crops instead of chemical pesticides
The grey, black or white mixture of gases is:
Oxygen
Hydrogen
Nitrogen
Smoke
Which is the effect of land pollution?
Various kinds of cancers
Asthma
Diarrhoea
Hypertension
Why should we avoid pollution?
Because pollution effects our health
Because pollution does not affect our health
Because pollution does not affect the environment
Because pollution is good for our health
Which is the problem caused by air pollution?
Deafness
Which is true?
Living things only depend on living things
Living things depend on each other only
Living things depend only on non living things
Living things depend on each other and non living things
Which statement is true?
We should not take care of our environment.
We should not care of other living things.
We should take care of our environment.
We should pollute our environment.
The presence of toxic chemicals in soil, in high enough concentrations at the risk to human health and ecosystem is defined as:
Land pollution
