What is the range of grain sizes that are most commonly found in a sandstone? 1 0.0004cm- 0.006cm
2 0.006cm- 0.2cm
3 0.2 cm- 6.4 cm
4 6.4 cm - 25.6 cm​

Which medullary index indicates a human hair? a. 0.653 b. 0.733 c. 0.516 d. 0.256

Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve

Which is not a likely outcome after extensive irrigation of dry farmland? useless, unproductive soil salinization of the soil depletion of groundwater nutrient-rich soil