In the reaction CH2O(g) + O2(g) ? HCOOH(g) + H2O(g) which species is oxidizing agent?
A) CH2O(g)
B) O2(g)
C) HCOOH(g)
D) H2O(g)
B
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Most ocean surface currents are due to
A) melting polar glaciers. B) river flow into the ocean. C) global winds. D) local winds.
Axial precession is sometimes called the precession of equinoxes because it results in a gradual shift, relative to the celestial background, of the position where the sun crosses the celestial equator at the equinox
Astrology is a mythology based on things like your "sign" which refers to the position of the sun in the celestial zodiac (the 12 constellations along the ecliptic) on your birthday. This system was established almost two thousand years ago. If this mythology were true (and you believe your horoscope) can you use the dates for your "sign" based on this 2000 year old system? A) No, because 2000 years is almost 1/12, or one full sign shift, in the zodiac, so the 2000 year old signs are off by almost one full sign. B) Yes, any changes are insignificant in 2000 years. C) No, although the precession shifts the equinox position, the other zodiac positions do not change because they are fixed to the celestial sphere. D) Yes, the dates are fixed; your sign is your sign.
Ocean water originated mainly from degassing of the Earth's interior.
Answer the following statement true (T) or false (F)
Of the following fluvial terms, which is most closely associated with stream capture?
A) Beheaded B) Braided C) Thalweg D) Meander E) Interfluve