Water holding capacity measures the space between particles in a soil sample. This is done by saturating the soil sample, weighing the mass, drying the soil completely, and then weighing the mass of the dry sample. Water holding capacity is the percent change in the mass. Calculate the water holding capacity of the following sample. b. Wet weight: 30.2 grams
Dry weight: 27.3 grams

What percentage of light hits earth's surface directly?

Explain why ecosystem diversity results in species diversity in a healthy biosphere

Scientists are conducting a study on the effectiveness of a new drug on memory loss. they are giving some of the test subjects the new drug to find out if it improves their long-term memory. which are possible limitations of this study? check all that apply. a) test subjects may want to participate in additional experiments. b) test subjects may think they should be paid more. c) test subjects may get bored and want to quit early. d) test subjects may have to travel during the experiment. e) test subjects may have full-time jobs. this is multiple choice. you for the !