Select all the correct answers. the map shows the nile delta, the region where the nile river flows into the mediterranean sea. despite being located in a hot and dry desert, the delta contains rich and fertile agricultural land. select two probable causes for the delta’s high fertility. a.) the nile river deposits fertile soil in the delta. b.) the mediterranean sea deposits salt into the delta. c.) the flowing nile river continuously erodes the delta. d.) the soil in the nile delta contains only organic matter. e.) the nile river supplies water and nutrients to the delta.

Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos