What is a scientific theory? a. a reasonable guess based on instinct b. an imaginative idea explaining natural phenomena c. a broad, evidence-based explanation for a phenomenon d. a tentative statement with little or no predictive power

Which characteristics are true of the arabian desert? multiple answers choose all answers that are correct. a. is mostly below sea level b. covers almost the entire arabian peninsula c. contains the largest sand sea in the world d. has very few people living there

The african continent is home of the worlds largest desert and longest river . t or f

Which of the following is an environmental cost of agriculture? a. agronomyb. cash cropsc. pollutiond. crop rotation