Which of the following are ways that humans benefit from biodiversity? Choose all that apply:

Reduced risk of flooding

Food harvested from ecosystems

Raw natural materials, such as wood or rubber

Pollination of crops

Recreation

Medicines derived from plants

to be honest I would click all

Explanation: Humans benefit from biodiversity as a source of food, medicine, and raw materials. Biodiversity ecosystems provide benefits to humans, like cleaning water or pollination of crops. ... Marine ecosystems store large amounts of carbon.

C. The density of each rock