Which two structures would provide a positive identification of a plant cell under a microscope? a. cytoskeleton, cell wall b. endoplasmic reticulum, chloroplasts c. chloroplast, large central vacuole d. large central vacuole, flagellum

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

Once similarity and one difference between a mixture of elements and a mixture of compounds

The solid xy decomposes into gaseous x and y: xy(s) m x(g) + y(g) kp = 4.1 (at 0 °c) if the reaction is carried out in a 22.4 l container, which initial amounts of x and y will result in the formation of solid xy?