identify each of the following in this study: control group and confounding variable and independent variable

Want free points + free brainliest? answer this drivers ed question correctly and i got you! a higher grade number for oil means it is a. heavier b. more viscous c. less viscous d. more important

Compare and contrast the environmental consequences of reliance on coal with reliance on petroleum.

Which of the following is not true about hydroelectricity a. use of gravitational force of flowing water b. its the most widely used renewable energy c. it has a high output of co2 that fossil fuels d. it has no direct waste asap