What is the term that refers to the substances and forces that sustain our society and everyday lives?
- natural resources
- free riders
- mixed economy
- nonmarket values
natural resources
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Exfoliation is the physical weathering process that causes unloading
Indicate whether the statement is true or false
When sea water freezes to form sea ice, the salinity and density of the remaining seawater decreases.
a. true b. false
Briefly distinguish between ionic and covalent bonding and discuss the role that electrons play in both
What will be an ideal response?
An Alka-Seltzer antacid tablet bubbles vigorously when placed in water but only slowly when placed in an alcoholic beverage of the same temperature containing a 50:50 mix of alcohol and water. Propose a probable explanation involving the relationship between the speed of a reaction and molecular collisions.
A. The tablet reacts with water but not the alcohol. B. The alcohol absorbs the carbon dioxide bubbles before they escape the liquid phase. C. In a 50:50 mix, there are fewer water molecules for the antacid molecules to collide with. D. Alcohol molecules are more massive than water molecules, hence they move slower and their collisions are not as forceful.