Final answer:
Abiotic factors of the twilight zone include limited light penetration, low temperatures, high pressure, and physical properties like water currents and dissolved solids. These factors influence the types of organisms that can survive in this extreme environment.
Step-by-step explanation:
The abiotic factors of the twilight zone, or the deep ocean, include a variety of nonliving conditions that have a significant impact on the organisms living there. One of the most important abiotic factors is light. As you descend into the twilight zone, the sunlight cannot penetrate, making this zone part of the aphotic region where photosynthesis is not possible.
Temperature also decreases significantly, creating a cold environment. The lack of light and cold temperatures influences biomes by limiting the types of organisms that can survive in such extreme conditions. Moreover, the abiotic factor of pressure increases greatly with depth, affecting the physical structure and biochemistry of marine life.
Large-scale physical water movements, such as currents, though less pronounced at these depths, and dissolved solids, also play crucial roles in shaping the ecological landscape of the twilight zone.