The principle difference between where salt marshes and mangrove forests grow is
a.
the salinity of the water
b.
the amount of sunlight the plants receive
c.
the intensity of the waves along the coast
d.
the extent of human development in the area

Ageologist determines that a sample of a mineral cant be scratched by a steel nail but can be scratched by a masonry drill bit based on this information the sample mineral has to be softer than

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.

Recommend a strategy for incorporating sustainable human activity into a tropical rain forest biome.