Explain the chemistry of how limestone dissolves
What will be an ideal response?
Answer: Carbonate rocks are the most susceptible to dissolution when water is present. Calcium carbonate in the presence of water and carbon dioxide changes into calcium bicarbonate. This substance is very easy to erode and takes up more volume than the original limestone.
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The National Environmental Policy Act requires that ____.
A. an environmental impact statement (EIS) must be developed for every major federal project likely to have an effect on environmental quality B. all companies with more than 50 employees must have an environmental impact minimization policy and demonstrate its effectiveness C. federal projects cannot cause more than minimal harm to the environment D. companies with stringent environmental protection policies will receive substantial tax breaks E. state and local agencies can bar federal projects if they are believed to adversely impact the environment
The highest concentration of wealthy people in California live near ________
Fill in the blank(s) with correct word
Barium ions carry a 2+ charge, and nitrogen ions carry a 3? charge. What would be the chemical formula for the ionic compound barium nitride?
A. Ba3N2 B. Ba3N4 C. Ba2N2 D. Ba2N3
The science that studies Earth's past climates is
A) dendrochronology. B) paleoclimatology. C) climate change science. D) meteorology.