Which model best illustrates the flow of energy and matter in an ecosystem- a food chain or a food web? explain. PLZ HELP ILL MARK BRAINLIEST!!!

Use the table to answer question 22 23 and 24.

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.