Which of the following is an example of how humans negatively affect the quality of water on Earth? * 1 point A. overfishing of lakes B. cleaning up riverbeds C. runoff from dairy farms D. building man-made ponds

Ase your answer to this question on the information below.hydrocarbons and fissionable nuclei are among the sources used for the production of energy in the united states. a chemical reaction produces much less energy than a nuclear reaction per mole of reactant.the balanced chemical equation below represents the reaction of one molecule of a hydrocarbon with two molecules of oxygen.chemical equation: ch4 + 2o2 → co2 + 2h2o + 1.48 × 10−18 jthe nuclear equation below represents one of the many possible reactions for one fissionable nucleus. in this equation, x represents a missing product.nuclear equation: write an isotopic notation for the missing product represented by x in the nuclear equation.

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

How do you know when a chemical reaction has occurred