Final answer:
Ursula, with a chemistry degree aiming to specialize in pesticide improvements for the environment, should apply for a job at the Environmental Protection Agency (EPA), which regulates environmental protection and pesticide use.
Step-by-step explanation:
Ivf Ursula has graduated with a chemistry degree and is interested in working on pesticide improvements for the environment, the most suitable place for her to apply would be the Environmental Protection Agency (EPA). The EPA is responsible for protecting human health and the environment by writing and enforcing regulations based on laws passed by Congress. Specifically, the EPA works to prevent businesses from polluting the nation's air and waterways and is involved in regulating the use of pesticides to ensure they do not cause harm to the environment or human health. This aligns with Ursula's goal of specializing in pesticide improements for environmental protection.