What are the three organs of a plant? leaf, stem, roots water, stem, roots leaf, air, roots leaf, stem, soil

The blue segment below is a diameter of oo. what is the length of the radius of the circle?

The poles appear to be slightly flattened in a robinson projection. question 1 options: true false

Put these ecosystems in order of least biodiversity to most biodiversity 1. mediterranean forest 2. indonesian rain forest 3. arctic ocean