Answer:
<em>The correct option is B) Nutrients</em>
Explanation:
The availability of nutrients is very essential for a producer to survive. If nutrients will not be available, then the plant will not be able to carry out the essential processes which are required for its healthy living. The primary producers like plants take up nutrients from the soil.
Although, temperature and altitude also have an effect on the primary productivity but they can maintain homeostasis and hence these features will not affect that plant as much as the availability of nutrients.
The environment, the weather of the area, the amount of erosion, it can vary because of wind, water, or human interaction.
The active site is <span> a site on the substrate molecule where specific enzyme molecules bind.</span>