Which two aquatic ecosystems share key abotic components like thier contact with land and their salanity? Open oceans and grasslands, estuaries and salt marshes, freshwater wetlands and coral reefs, or tundras and taigas

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.

Which of the following statements are evidence that gases do not always behave ideally? check all that apply.? a. co2 gas becomes dry ice (solid co2) at 1 atm and –78.5 °c. b. when two gases are mixed, they follow dalton\'s law of partial pressures. c. at 4 k and 1 atm, helium is a liquid. d. it is impossible to compress a gas enough so that it takes up no volume.

Bonds within one water molecule are examples of