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Environmental Science

Environmental Science
When human body is infected by infection __________ type of cells are activated to defend the body.

lymphocytes
leukocytes
monocytes
erythrocytes

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Environmental Science
Climate includes

General patterns of atmosphere conditions
Seasonal variation
Average weather of an area
All of these

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Environmental Science
The first trophic level in a food chain

Green Plants
Herbivores
Carnivores
Bacteria

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Environmental Science
Man made sources of radiation pollution are:

nuclear fuels and preparation of radioactive isotopes
mining
explosion of nuclear weapons
all of these

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Environmental Science
Heat waves are generally considered to be little more than a nuisance and are not responsible for considerable loss of life.

1

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Environmental Science
Which of the following is the major cause of pollution?

hydrocarbon gases
man
plants
fungi

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