________ rocks form by crystallization and consolidation of molten magma.
A) Sedimentary.
B) Indigenous.
C) Primary.
D) Igneous.
E) Metamorthic.
Ans: D) Igneous.
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6. On the sources and types of air pollutants figure, choose the letter that represents CO, CO2, SO2, NO, NO2, most hydrocarbons, and most suspended particles. 7. On the sources and types of air pollutants figure, choose the letter that represents SO3, HNO3, H3SO4, H2O2, O3, PANs, and most NO3- and SO42- salts.
On average, a hurricane has a longer duration (lasts longer) than a tornado.
a. true b. false
Tropical savannas can produce fine quality:
a. fruits. b. vegetables. c. cattle. d. cotton.
Judge the following sentence according to the criteria given below: Coral bleaching causes coral to turn white BECAUSE bleach has been poured on the reef
A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct, but the reason is incorrect. D) The assertion is incorrect, but the reason is correct. E) Both the assertion and the reason are incorrect.