The greatest progress in reducing atmospheric levels of lead pollution resulted from
A) the elimination of leaded gas.
B) the switch from lead to graphite in pencils.
C) the development of new types of batteries that use lithium instead of lead.
D) new types of lead scrubbers on smokestacks that removed lead from the air.
Question 2
Increases in ocean temperatures often result in coral bleaching, in which
A) the symbiotic relationship between corals and their algae is disrupted.
B) the calcium carbonate of corals is dissolved away, leaving only the soft animals behind.
C) the water becomes so cloudy that no light can reach the symbiotic algae in corals.
D) high levels of chlorine are released from the corals, killing the fish that swim by.
Diabetes mellitus. The metabolic disease diabetes mellitus, with symptoms of polydipsia, polyuria, a
Chest CT scan. The stringy, cobweblike area indicates lung damage from smoking that has resulted in
Atmospheric CO2 Concentrations Increased Very Rapidly during the Last 200 Years
Charting Progress: Weekly Exercise Training Log
Sources and Types of Air Pollution
How much atmospheric pressure drop would starting to effect us?