In a grassland ecosystem, if the pollution of eagles suddenly decreased, what will most likely be the effect on the rest of the ecosystem.
a. the ecosystem will become overpopulated with snakes.
b. there will be a decrease in the population of snakes in the ecosystem.
c. the nutrition of the soil in the ecosystem will decrease.
d. more type of plants will begin growing in the ecosystem.

Water is siphoned from a large tank and discharges into the atmosphere through a 50-mm diameter tube. the end of the tube is b = 2.1 m below the tank bottom which is a = 7.4 m deep, and viscous effects are negligible. determine the maximum height h over which the water can be siphoned without cavitation occurring. atmospheric pressure is 101.4 kpa, and the water vapor pressure is 1.79 kpa (absolute)