The table below shows the use of some energy production methods over time. Type of energy Average energy used annually in the past (in million tons) Average energy used annually at present (in million tons) Average energy most likely to be used annually in the future (in million tons)Oil 200 4000 300Gas 100 2500 700Coal 1000 2500 1500Wind 0.1 50 2000Hydropower 0.7 60 150Tidal power 0.02 50 500Based on the table, which of these statements best describes the impact of different methods of energy production on the environment in present times? Wind energy may be altering all shorelines on Earth.

Hydropower may be altering all shorelines on Earth.

Tidal power may not be contributing significantly to climate change.

Coal energy may not be contributing significantly to climate change.

1. what is the relationship between wavelength and the penetrating power of an electromagnetic wave? a) the penetrating power has no relationship to the wavelength. b) the penetrating power increases as the wavelength increases. c) the penetrating power decreases as the wavelength increases. d) the penetrating power decreases as the wavelength decreases. 2. as ice melts and turns into water, the speed of sound through the material would most likely do what? justify your answer. a) the speed would not change because the material is always water. b) the speed of sound would increase because the density of water is less than that of ice. c) the speed of sound would increase because energy is added to ice in order to make it melt. d) the speed of sound would decrease because sound travels faster through solids than liquids. 3.which of these waves need a medium to travel through? a) sound b) x-rays c) infrared rays d) visible light