Which of the following situations accurately describes a difference between a food chain and a food web? a. a carnivore receives 10% of the energy from it's prey in a food web. b. a carnivore eats both a rabbit and a mouse in a food web. c. a rabbit eats grass in a food chain. d. a rabbit receives 90% of the energy from the grass it eats in a food chain.

a mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. this uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.a geomagnetic reversal is a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged.