What are the sources of biological contaminants?

Overview. Biological contaminants include bacteria, viruses, animal dander and cat saliva, house dust, mites, cockroaches, and pollen. There are many sources of these pollutants. By controlling the relative humidity level in a home, the growth of some sources of biologicals can be minimized.

What are some ways to control biological pollutants from being added to the air?

What You Can Do About Biological Pollutants

Fix leaks and seepage.
Put a plastic cover over dirt crawlspaces to prevent moisture from coming in from the ground.
Use exhaust fans in bathrooms and kitchens to remove moisture to the outside (not into the attic) Vent your clothes dryer to the outside.

Which of the following can reduce indoor pollution?

Ventilation and shading can help control indoor temperatures. Ventilation also helps remove or dilute indoor airborne pollutants coming from indoor sources. This reduces the level of contaminants and improves indoor air quality (IAQ).

What can we learn from observing nature?

Not only can observing and being in nature spark fantastic, important, creative work from people such as philosophers, scientists, and artists, but it can also offer lessons for basic living: how to be healthy, how to be calm, and how to find balance, for instance.

What can we learn from Earth?

It give us many things but never ask for reward. It teaches us that we should help other.
It teaches us that we should be kind to everyone. As earth fulfil our needs.
It teaches us equality.
It teaches us that we should not waste anything.
It teaches us value of love.

What values can we learn from Earth?

Here are the 17 life lessons that the second series of Planet Earth has taught us all (even if we didn’t realise it).

Confidence is your most attractive quality.
True love is worth searching for.
Life is better with your squad.
Good friends never ignore your calls.
Sometimes you have to fight for what you want.

What is the beauty of the nature?

The beauty of nature The nature of man is characterized by its beauty resulting mainly from the wonderful diversity of living organisms that exist in various parts of the earth, as well as the unique terrain of mountains, water, plateaus and forests.