Heat energy can be produced in many ways. which of the following sources can produce heat energy? a. the sun b. electricity c. burning wood d. all of these

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

What methods could you use to solubilize calcium carbonate

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?