The diagram below shows stream gradient. How do you calculate stream gradient?
Stream Gradient
Elevation
Difference
Horizontal Distance
w
O A. Elevation difference divided by horizontal distance
O B. Elevation difference times horizontal distance
O C. Horizontal distance divided by elevation difference
D. Horizontal distance minus elevation difference

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.

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

What are the pros and cons of quadrat sampling?