Select all of the answers that apply. which of the following cause volcanic eruptions?
a. pressure and heat built up in the magma chamber
b. plate tectonics and subduction
c. ground swelling and foreshocks
d. foreshocks and aftershocks

The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)

Which of these is constant for all types of electromagnetic radiation in a vacuum? select one: a. wavelength b. frequency c. photon energy d. amplitude e. velocity

What component of earth’s atmosphere exists entirely as a result of photosynthesis?