In the mantle heat transferred upward as molten rock slowly flows in repeating cycles that are known as?

What property does soil or rock need to be permeable? a.)young b.)old c.)non porous d.)porosity

4. suppose you own a fishing business located at approximately 38° n latitude off the coast of maryland. most of the fish you catch are atlantic cod, and your primary means of catching fish are gillnetting and longlining. a. describe two advantages, related to thermohaline circulation and surface ocean currents, of your fishery’s location. b. explain what happens during el niño-southern oscillation. describe two ways that an el niño event can alter the number of fish you catch in a year. c. are your primary methods of fishing sustainable? explain your answer. describe two alternative fishing methods you could use, and explain whether each method is more or less sustainable than your current methods. d. identify two pieces of legislation that regulate fishing in u.s. or international waters, and explain how each piece of legislation affects your fishery.

(warning: this is a really hard one) who is anna the bird? explain.