I think that God has existed always. That's the only logical explanation referring to religion.
One type of density change is mass over volume.
Probably a hinge joint or a tendon.
Answer: Burning Fossil Fuels
Explanation: Technically getting rid of anything on this list would reduce greenhouse gas emissions burning fossil fuel releases 50 billion tonnes of CO2e each year texting on cellphones is estimated to emit 32,000 tons CO2e per year and eating meat is estimated to emit 3.3 tons of greenhouse gas emissions.
