According to Figure 3.4, what is the magnetic declination between:
a) True north and magnetic north (MN)? _______________________
b) True north and grid north (GN)? _______________________
a) 9.5°
b) 1° 249
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A process known as ____________________ is used to convert solid coal into synthetic natural gas, removing sulfur and other impurities.
Fill in the blank(s) with the appropriate word(s).
Saltwater intrusion into freshwater (drinking water) supplies can occur when
a. land subsidence occurs b. snowpack is used as drinking water in areas close to saltwater bodies c. groundwater is withdrawn near saltwater bodies d. water is drawn from desert lakes to irrigate crops e. runoff of agricultural fields drains into wells
A characteristic of populations in richer countries is demonstrated by people having fewer children and living longer; ratios of the old to the young have been rising rapidly
Indicate whether the statement is true or false.
What was the relationship between Earth’s temperature and incoming solar radiation between 1998 and 2014?
a. ?Earth’s temperature rose sharply during a period of constant incoming solar radiation. b. ?Earth’s temperature rose slowly during a period of weaker solar energy. c. ?Both Earth’s temperature and the amount of incoming solar radiation fell. d. ?Both Earth’s temperature and the amount of incoming solar radiation rose. e. ?Earth’s temperature remained constant during a period of stronger solar energy.