Problem: Guyana and Nigeria had thriving economies. Guyana's economy was based on conventional agriculture, while Nigeria attracted an enormous number of tourists to its splendid beaches each year. Which country caused less hypoxia?

A: Nigeria

Problem: Mike is a biochemist, working for a science lab. Today, he has two organisms to investigate, organism A and organism B. He notices that organism A has enzymes, but organism B lacks enzymes. He needs to figure out how these conditions would affect the organisms. Would organism B see speedier or slower chemical reactions than organism A?

A: slower

Problem: Environmental scientists are trying to find a solution to reducing the harmful effects of chemicals on the environment. To that end, they developed a transgenic crop with the help of Bt toxin - they referred to it as case A. To test the effectiveness of this new crop they also studied Bt toxin spray - they referred to it as case B. They need to figure out which case is safer for the environment. In which case the Bt toxin would bind to the insect's gut wall, case A or case B?

A: case A

Problem: Sarah and Lydia are two sisters that have been learning how to farm since they were kids. After graduating college, they both started their own farms and have been working on their own for several years now. At a family get together, Sarah mentions that her farm is experiencing soil salination. Lydia finishes swallowing her bite of cake and remarks that her farm has never experienced that before. Who has less free salts in the soil of their farm?

A:
Lydia