Question 8 of 20: Select the best answer for the question.
8. What is true of loam?
O A. Loam is a type of soil that's good for agriculture.
O B. It's primarily formed from decomposed plants.
O C. It has equal concentrations of sand, clay, and silt.
O D. Loam contains mostly sand and gravel.
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not always but somethings can be reproduced in a laboratory.

the species living around the vents are especially good at dispersal.  

deep-sea vent originates on the floor of the ocean when seawater circulates through hot volcanic rocks, usually situated where the new oceanic crust is being produced.  

biological dispersal refers to the movement of species from their location of birth to their site of breeding, or from breeding site to another. similarly, the oceanic dispersal refers to the movement of the species from one land mass to another by sea crossing.