The column of the geologic time scale that represents the longest/largest time span is called a(n) ________.
A. Epoch
B. Period
C. Era
D. Eon
Ans: D. Eon
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If the air inside your house is 23°C with 1.8 g of water vapor per kilogram of air, how many grams of water would you need to add to humidify all the air in your house to 50% relative humidity?
Find out how much water vapor you would need to add to make your whole house comfortable. The average American house contains 544 m3 of air, and at 21°C, 1 m3 of air has a mass of 1.2 kg. What will be an ideal response?
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.
Primary productivity of the open oceans is very limited because of
A) the shortage of water. B) the shortage of light. C) the shortage of nutrients. D) low temperature.
Which countries have had colonial or neocolonial influences in the Caribbean, and why have they engaged with the region?
What will be an ideal response?