Environmental Science The aurora is produced by: Reflections of sunlight by polar ice fields Scattering of sunlight in the upper atmosphere Burning oxygen caused by the intense sunlight at high altitude The combination of molecular and atomic oxygen to form ozone Fast-moving charged particles colliding with air molecules Reflections of sunlight by polar ice fields Scattering of sunlight in the upper atmosphere Burning oxygen caused by the intense sunlight at high altitude The combination of molecular and atomic oxygen to form ozone Fast-moving charged particles colliding with air molecules ANSWER DOWNLOAD EXAMIANS APP
Environmental Science Harmful trace metals in fly ash: cadmium arsenic antimony All of these cadmium arsenic antimony All of these ANSWER DOWNLOAD EXAMIANS APP
Environmental Science Man made sources of radiation pollution are: mining nuclear fuels and preparation of radioactive isotopes all of these explosion of nuclear weapons mining nuclear fuels and preparation of radioactive isotopes all of these explosion of nuclear weapons ANSWER DOWNLOAD EXAMIANS APP
Environmental Science The unit of pressure most commonly found on a surface weather map is: Pounds per square inch Inches of mercury (Hg) Millimeters of mercury (Hg) Millibars or hectopascals Pounds per square inch Inches of mercury (Hg) Millimeters of mercury (Hg) Millibars or hectopascals ANSWER DOWNLOAD EXAMIANS APP
Environmental Science The phenomenon of occurrence of additional species found in the ecotone or transitional zone between adjoining ecosystems is known as _________ Raman effect Edge effect Root effect Coolidge effect Raman effect Edge effect Root effect Coolidge effect ANSWER DOWNLOAD EXAMIANS APP
Environmental Science Nitrogen gas returns to the atmosphere by the action of Nitrogen fixing bacteria Nitrate fertilizers Denitrifying bacteria Nitrifying bacteria Nitrogen fixing bacteria Nitrate fertilizers Denitrifying bacteria Nitrifying bacteria ANSWER DOWNLOAD EXAMIANS APP
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