What difference would it make if the southern sea otter (Core Case Study) became extinct mostly
because of human activities? What are three
things we could do to help prevent the extinction
of this species?

You find a mysterious, dull substance on the ground and pick it up for a closer look. it is powdery, very light, and soft to the touch. the substance is most likely i. an organic mineral ii. a metallic mineral iii. a nonmetallic mineral i only ii only iii only i and ii i and iii

Which of the following ideas would not lead to lower amounts of waste? a) the extension of a product’s lifetime b) the elimination of unnecessary packaging c) flexible construction for simple repair d) built-in obsolescence e) the introduction of new design technology

Ahummingbird travels from plant to plant to feed itself. which of the following ecosystem services does this hummingbird most likely provide? i. pollination ii. seed dispersal iii. soil preservation i only ii only iii only i and ii only ii and iii only