The picture shows an interaction within an environment.
Which describes the interaction?
Two abiotic factors are interacting.
Two biotic factors are interacting.
The tree is abiotic and is interacting with a biotic factor.
The tree is biotic and is interacting with an abiotic factor

Which of the following is not a pillar of the nuclear proliferation treaty? nonproliferation reduction of nuclear weapons by 85-90% right to peacefully use nuclear power disarmament

1. crust 1 the metallic layer at the earth's center 2. inner core 3 the firm layer between the crust and the asthenosphere 3. lower mantle 2 the layer surrounding the inner core 4. asthenosphere 4 the semi-solid layer between the top layer and the upper mantle 5. upper mantle 5 the layer between the asthenosphere and lower mantle 6. top layer 6 the earth's outermost layer 7. outer core 7 the hottest part of the mantle

How can studying economics us make better choices about how to use scare resources