“packers” in California. What are packers, and what challenges does their decline pose to firefighters who fight wildfires?

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

‘which reaction would most likely require the use of an inert electrode?