7) when an experiment is repeated and the new results are different from the original results, what could you assume to be true? a) the results from both experiments are worthless. b) the first experiment's results are worthless and should be discarded. c) the experimental design is flawed and the experiment should be discarded. d) neither test results are 100% reliable and additional experimentation is needed.

D) Neither test results are 100% reliable and additional experimentation is needed.

Explanation:

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.