Coral bleaching occurs when algae, the food of the corals, die off because of stresses such as increased ocean temperatures.
Answer the following statement true (T) or false (F)
True
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Compared with quartz, minerals that include the positively charged ions of aluminum, iron, magnesium, and calcium are ________ vulnerable to chemical weathering by acidic solutions.
A. more B. not C. less D. just as
A large volcano sits in Eastern California in a popular vacation area. This volcano erupted catastrophically in prehistoric times. The area was geologically quiet for thousands of years. However, changes have occurred in recent decades
Many small earthquakes have been recorded, the volcano is releasing carbon dioxide gas, and its flanks are swelling. Scientists estimate from these observations that there is a 1 in 6 chance that the volcano will erupt at any time. 1. Should disaster officials warn the public? If so, what's the best way to explain the risk? 2. Should the area be evacuated? 3. What are some consequences of warning the public? 4. What are some consequences of not warning the public?
Which of the following images could describe an element at the atomic level?
A. 
B. 
C. 
D. none of the images
E. all of the images
When an occlusion occurs,
A) the warm front overtakes the cold front and the colder air is lifted from the surface. B) the warm front overtakes the cold front and the warmer air is lifted from the surface. C) the cold front overtakes the warm front and the colder air is lifted from the surface. D) the cold front overtakes the warm front and the warmer air is lifted from the surface.