Why are hot spots so strange?
A) They occur at plate boundaries,
B) The volcanoes at hot spots erupt once a year.
C) They only occur near transform boundaries.
D) Molten material rises from deep in the mantle below the moving lithosphere as a result of processes not explained by plate tectonics,
Answer: D
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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 alcohol absorbs the carbon dioxide bubbles before they escape the liquid phase. B) Alcohol molecules are more massive than water molecules, hence they move slower and their collisions are not as forceful. C) The tablet reacts with water but not the alcohol. D) In a 50 : 50 mix there are fewer water molecules for the antacid molecules to collide with.
At the speed of light, energy from the sun takes how much time to reach the Earth?
A) 1 second B) 30 seconds C) 8 minutes D) 24 minutes
The move to formal British colonial rule was, in part, a response to the Sepoy Rebellion in 1857
Indicate whether the statement is true or false
Answer the following statement(s) true (T) or false (F)
1. Babies that are conceived between April and July, the prominent time period for pesticide application, are more likely to have birth defects, including Down’s Syndrome, club foot, cleft lip, and other troubles. 2. In 2009, organic food sales rose at three times the rate of non-organic food sales. 3. In the United States, 8 out of 10 consumers use organic products with their children’s’ health in mind 4. The World Health Organization has banned all dangerous pesticides and the ones that are used today are not at all dangerous to human health.