Calculate the mass (in kg) of 245 cm3 of concrete if the density of concrete is 2400 kg/cm3. Give your answer to 2 decimal places Enter your answer as a number
kg

Study the diagram showing the range of temperature in the earth’s layers. which temperature most likely corresponds to the asthenosphere? 1,613°c 2,521°c 3,628°c 6,217°c

Heat from the sun reaches earth to a. radiation b. convection c. conduction

Which sentences describe disadvantages of burning fossil fuels instead of using hydrogen fuel cells? burning fossil fuels contributes to climate change. burning fossil fuels takes place inside expensive fuel cells. fossil fuels aren't widely available, but pure hydrogen is. fossil fuels are nonrenewable.