Nearly 97% of the water on earth is unusable by humans because of its this lack of usability is due to the fact that water 1. a. temperature. b. salinity. c. impurities. 2. a. is a universal solvent. b. expands upon freezing. c. is transparent.

Plz ! having a smooth seeds is the dominant trait. having wrinkled seeds is a recessive trait. the offspring of two plants with smooth seeds, a. must have smooth seeds. b. may have smooth or wrinkled seeds. c. must have wrinkled seeds. d. have a 25% change of having smooth seeds.

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.

Give three examples of plant activities that are affected by circadian rhythms and natural fluctuations in the length of daylight?