Which best explains why astronauts appear weightless when they are in a space shuttle orbiting earth? they are falling toward earth at the same rate as the space shuttle. they are falling toward earth at a faster rate than the space shuttle. they are too far from earth to experience gravity. they are too far from earth to experience air resistance.

 Hello there!

When the astronauts are in orbit, they are too far from Earth to experience enough gravity, this is why they are "weightless"

Non the less, is not like "there is no gravity there", gravity is what keeps the space shuttle in orbit, the astronauts "appear" weightless, but they aren't, they still have mass, and still are being affected by gravitational forces, but now the gravitational force from the earth is depreciable, and contrasted a little bit by other gravitational forces.

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

the answer is 12 as i may remember

: )