Why does a deceased rate of photosynthesis lead to a decrease in a plant population?

Which element is the least metallic between cadmium, silver, zinc, or iron?

In the lab, ammonia was mixed with water to form ammonium hydroxide. what is/are the reactant(s)? o water and ammonia o ammonia o ammonium hydroxide need

The equation picture below shows which type of nuclear reaction u 235 + n x e 134 + sr 100 + 2n