Ethan wants to study how the size of sugar crystals affects the time taken to dissolve 10g. of sugar in 100m. of water held in a beaker. what is the independent variable for the experiment

Which is the layer underground where all empty spaces are filled with a combination of air and water ?

About 70 percent of the earth's surface is water-covered, and about 96.5 percent of all earth's water is salt water. identify the watery feature on earth that is made of freshwater rather than salt water. a) bay b) glacier c) ocean d) sea it is not incomplete this is the true question

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole