For his class project, Mike needs to collect samples of algae. In which section of a river is Mike most likely to find algae? A. middle section of the river B. source of the river C. mouth of the river D. all along the river

Gold is not now being extracted from seawater. why not? a. it would be too disruptive to marine life to develop any marine mineral resources b. there is no gold in seawater c. we don't know how to extract minerals from seawater d. it would be too costly and difficult to separate the small amount of gold from the very large amounts of halite and other minerals

What are the answers for the following questions?

What is the difference between the formation and characteristics of intrusive igneous rock and extrusive igneous rock?