Global physical environment graded problem set 4 1. light travels across space to reach earth and "feed" plants. sunlight travels at the speed of light, or 299,792,458 meters per second (m s1). what is this speed in miles per hour? also, if the round-trip distance between key largo, florida, and fairbanks, alaska, is 9,930 miles, how many trips could be taken in one second at this rate of speed? express your answers to one decimal place accuracy 2. using the rate from problem 1 (speed of light in miles per hour), calculate the amount of time it takes sunlight to reach earth during early january (sun is closest to earth at this time). assume the distance from the sun to earth is 91,500,000 miles. express your answer to one decimal place accuracy. 3. via the food-making process of photosynthesis, plants use 200 billion tons of carbon dioxide from the atmosphere every two years. at this rate of removal, how many pounds of carbon dioxide are removed from the atmosphere every month? express your answer to one decimal place accuracy. 4. a very large tree in the redwood forest of california is 400 feet tall. calculate this height in centimeters, meters, inches, yards, and rods (one rod is equivalent to 16.5 feet). express all answers to one decimal place accuracv. 5. snow and ice only exist on a mountain above 16,000 feet in the summertime. calculate this height in meters and rods. express your answers to one decimal place accuracy.