Which statement describes a positive effect of dams?
o
a. they provide water for the irrigation of crops.
b. they impede fish migration and spawning.
c. they divert water from ecosystems.
o
d. they increase the sediment load of waterways.

Drag each label to the correct location. each label can be moved more than once match the properties with the subatomic particle

What characteristic make legumes a good food source for food insecure populations

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