Weegy: The answer would be, B. environmental science. Thank you! User: Please choose the answer that describes the scientific notation for 3,134,000,000.      A. 3.143 × 109 B. 3.134 × 109 C. 31.34 × 109 D. 3.143 × 1045 Weegy: Scientific notation for 3,134,000,000 is 3.134 x 10^9 B. 3.134 × 10^9 (More)

Weegy: The gem amethyst, which is a form of quartz, gets its purplish color from C. IRON. [ Color centers in the quartz are created when trace amounts of iron are irradiated (from the natural radiation in the rocks). ] (More)

Weegy: The study of weather is known as METEOROLOGY. (More)

Weegy: Due to human demand because of its importance to life, the Earth's most precious resource is letter A. freshwater. User: How many chemical reactions are possible regarding the formation of carbonic acid and the dissolving of calcite?      A. 10 B. 2 C. 3 D. 23 Weegy: Carbonic acid formation CO2(g) + H2O(l) - - > H2CO3(aq) Dissolving of calcite CaCO3(s) + H2CO3(aq) - - > Ca(HCO3)2(aq) So there are 2 chemical equations. (More)

Weegy: When the water level of a stream or river exceeds its natural banks, it has reached its C. flood stage. (More)