According to the World Bank, ________ has 16 of the 20 most air-polluted cities on earth
A) China
B) Brazil
C) Mexico
D) United Kingdom
E) the United States
Answer: A
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At 10°C, which is more concentrated—a saturated solution of sodium nitrate, NaNO3, or a saturated solution of sodium chloride? (See figure shown above )
A) At 20°C a saturated solution of sodium nitrate, NaNO3, is more concentrated than a saturated solution of sodium chloride, NaCl. B) At 10°C a saturated solution of sodium chloride, NaCl, is more concentrated than a saturated solution of sodium nitrate, NaNO3 C) At 10°C a saturated solution of sodium nitrate, NaNO3, is more concentrated than a saturated solution of sodium chloride, NaCl. D) At 25°C a saturated solution of sodium nitrate, NaNO3, is more concentrated than a saturated solution of sodium chloride, NaCl.
What is a naturally occurring, inorganic, crystalline solid, having characteristic physical properties and a narrowly
defined chemical composition? a. rock b. gem c. mineral d. glass e. magma
When a shale metamorphoses into a slate why do some slates contain muscovite and some slates contain chlorite?
A) The chlorite slates form at different pressures than the muscovite slates. B) The chlorite slates have a different composition than the muscovite slates. C) The chlorite slates form at different temperatures than the muscovite slates. D) The chlorite slates form at different temperatures and pressures than the muscovite slates.
How is the precautionary principle used in environmental health? What is an alternative philosophical approach?
What will be an ideal response?