Halley's comet orbits the sun roughly once every 76 years. it comes very close to the surface of the sun on its closest approach. how far from the sun is halley's comet at its furthest point, the aphelion?

Does anyone know the answers for these

In which area will soil formation be greatest? a a steep slope in a warm,b wet climate a flat area in a warm,c wet climate a north-facing area on a steep slope a flat area in a cold, d wet climate description

What way does renewable energy differ from nonrenewable energy?