Answer:
The Earth's crust is broken up into a series of massive sections called plates. These tectonic plates rest upon the convecting mantle, which causes them to move.
The Area Rule, is a design technique used to reduce an aircraft's drag at transonic and supersonic speeds, particularly between Mach 0.75 and 1.2. It improved everday aviation by increasing overall speed and efficiency.
Answer:
a nuclear weapons treaty (nuclear non-proliferation)
Plant leaves and dead organic matter are broken down by decomposers,to produce soil nutrients for plants. This is an important role decomposers play in the nutrient cycles.
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