Which gas can replace oxygen in blood hemoglobin, thereby reducing the transport of oxygen to the brain?

A) sulfur dioxide (SO2 )
B) carbon monoxide (CO)
C) carbon dioxide (CO2 )
D) methane (CH4 )


B

Environmental & Atmospheric Sciences

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Ignoring immigration, a developed country that has had a total fertility rate below 2 for several decades ________

A) probably has a declining dependency ratio B) will have a population declining in size C) has a decreasing average age D) All of these are correct.

Environmental & Atmospheric Sciences

Remote sensing is a direct method of making meteorological observations

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

How thick is the atmosphere?

A. About 5000 km B. About 500 km C. About 50 km

Environmental & Atmospheric Sciences

The most abundant marine macroscopic algae are members of the Division ________

A) Bacillariophyta B) Chlorophyta C) Chrysophyta D) Phaeophyta E) Rhodophyta

Environmental & Atmospheric Sciences