Debate which energy sources effectively balance human needs with environmental concerns
What will be an ideal response?
Answers might mention coal, nuclear, solar, hydro, natural gas.
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Scientists use proxy records in climate research to determine ________
A) climates hundreds and thousands of years ago B) current levels of carbon dioxide C) changes in the ozone layer over the past 30 years D) changes in temperature over the past 100 years
If the global population increases to 9 billion by the middle of the 21st century, which of the following would be necessary?
A) A tripling of the amount of water used for irrigating cropland B) A growth of 50-70% in global food production over current levels C) Universal health care coverage D) A global one-child policy
During the urea cycle some ATP is converted to ADP and some ATP is converted to AMP. Given that the conversion of ATP to AMP is thought of as equivalent to the consumption of 2 ATPs, what is the total ATP consumption of the urea cycle?
A) 3 B) 4 C) 5 D) 6
Describe the typical air masses that affect North America. Give their source regions, physical characteristics and properties, and typical directions of movement
What will be an ideal response?