Nitrogen Cycle

Front

Most abundant gas in the Earth's atmosphere: Oxigen, Nitrogen, Methane, Carbon Dioxide

Back

Nitrogen

Front

Nitrogen cycle process in which Nitrogen becomes bioavailable and is given in the air by lightning and in the soil by bacteria.

Back

Fixation

Front

Cycle process where Nitrogen becomes ammonium

Back

Ammonification

Front

The rain is usually slightly acidic due to:

Back

Carbon dioxide that reacts with the water vapor in the clouds to form carbonic acid. (H2CO3)

Front

Identify the two substances resulting from the burning of fossil fuels, and that are released into the atmosphere by factories and automobiles, contributing to acid rain: Carbon Dioxide and Water, Nitrous Oxide and Sulfur Dioxide, Methane and Water, Chlorofluorocarbons and Water

Back

Nitrous Oxide and Sulfur Dioxide

Front

Consequences of acid rain

Back

Damage to nature (acidification of soils, lakes, seas), corrosion of metallic elements, destruction of limestone heritage

Front

Acid rain contains: hydrochloric acid and carbonic acid, phosphoric acid and acetic acid, sulfuric acid and nitric acid, acetic acid and carbonic acid

Back

sulfuric acid and nitric acid

Front

Which of the following is a neutral pH? pH 7.4, pH 5.3, pH 8.0, pH 12.3

Back

pH 7.4

Front

Which of the following is an acid? pH 7.0, pH 10, pH 6.2, pH 13

Back

pH 6.2

Front

Identify the option that is a base (alkaline). Options: pH 3, pH 7.0, pH 9.4, pH 0

Back

pH 9.4