What abiotic factors affect sea urchins

Explanation:

Elicit from students that an abiotic factor is any non-living component of the environment and ask for examples, such as sunlight, temperature, moisture, wind or water currents, soil type, and nutrient availability.

liquid crystals are matters in a state which have properties between those of conventional liquids and those of solid crystals[1]. liquid crystal is partially ordered and anisotropic. in terms of molecular order, liquid crystal molecules have one-dimensional or two-dimensional long - range order.

b is the best answer for this question.