Environmental Science In a volume of air near the earth's surface, ____ occupies 78 percent and ____ nearly 21 percent. Nitrogen, oxygen Hydrogen, helium Nitrogen, water vapor Oxygen, hydrogen Hydrogen, oxygen Nitrogen, oxygen Hydrogen, helium Nitrogen, water vapor Oxygen, hydrogen Hydrogen, oxygen ANSWER DOWNLOAD EXAMIANS APP
Environmental Science Which of the following provides a measure of the average speed of air molecules? Pressure Density Temperature Heat Pressure Density Temperature Heat ANSWER DOWNLOAD EXAMIANS APP
Environmental Science ________ is diffused into the ground by gravitational force. Rain water River water None of these Ocean Rain water River water None of these Ocean ANSWER DOWNLOAD EXAMIANS APP
Environmental Science The undesirable change in physical, chemical or biological characteristics of air, land and water is referred as Ecodestructions Pollutants All of these Pollution Ecodestructions Pollutants All of these Pollution ANSWER DOWNLOAD EXAMIANS APP
Environmental Science The most important reason for decrease in biodiversity is Habitat destruction Over-exploitation Introduction of exotic species Habitat pollution Habitat destruction Over-exploitation Introduction of exotic species Habitat pollution ANSWER DOWNLOAD EXAMIANS APP
Environmental Science In an aquatic ecosystem, the depth to which light penetrates is called aphotic photic euphotic nonphotic aphotic photic euphotic nonphotic ANSWER DOWNLOAD EXAMIANS APP
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