zinc and copper is a solution of brass
Answer:
D
Explanation:
Vitamin K - blood clotting
Vitamin K plays an important role in the production of prothrombin. Prothrombin is a protein that helps in the blood clotting process.
A.) Sunlight
It is not a biotic factor. It is an abiotic factor.
Biotic factors include plants, animals , fungi, algae, and bacteria.
Abiotic factors include sunlight, temperature ,moisture ,wind or water currents , soil type, and nutrient availability.
Biotic and Abiotic factors differ greatly. A biotic factor is any living thing in an ecosystem, such as plants and animals. An abiotic factor is all nonliving things in an ecosystem, such as water, dirt, and rocks.
