Plant structures that increase the surface area for absorption of water and minerals are a. root hairs b. chloroplast c. guard cells d. lenticels

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?

Identify a strong intermolecular force of attraction between an alcohol