The air masses that interact to form hurricanes and cyclones rise and fall due to changes in air density and air pressure. Why do these storms also spin? O A. Low-pressure air pushes high-pressure air sideways. O B. Earth's rotation causes the air to turn as it moves north. O C. The Moon's gravity pulls air currents with the tides. O D. Ocean currents drag the air above them in circles.

Which of the following initial observations would more directly lead to this research study? a) ginko biloba is cost effective and also possesses heart-protective, antioxidant, anti-inflammatory properties. b) metformin is an effective treatment of patients with t2d, but shows side effects that complicate the disease state. c) over the past several years, the cost of treating t2d within the united states has increased dramatically. d) many plants contain molecules that improve the health and quality of life of patients with a variety of diseases like t2d. e) t2d affects millions of individuals in the usa and worldwide many of who could benefit from improved therapies.