Which of the following ecosystems is located in a semiarid climate region, is prone to drought, and is a transition zone between a desert area and a tropical grassland? a. the serengeti b. a mangrove c. the congo rainforest d. the sahel

Look at the diagram showing the different wavelengths in sunlight. which statement describes electromagnetic waves with wavelengths greater than 700 nanometers? they take the form of heat. they can cause skin cancer and sunburn. they are some of the shortest waves. they can be seen by human eyes as visible light.