Question

according to keplers first law, what shape are the orbits of planets around the sun?
perfect circles
parabolas with the sun at the vertex
irregular shapes that vary over time
ellipses with the sun at one focus

the process by which water soaks into the ground is called:
percolation
absorption
saturation
infiltration

what is the primary difference between renewable and non - renewable resources?
non - renewable resources can be replaced within a human lifetime
renewable resources can be replenished naturally within a human lifetime
renewable resources are more expensive to extract
non - renewable resources are always found in developing countries

Explanation:

First Question (Kepler's First Law)

Kepler's First Law states that the orbit of a planet around the Sun is an ellipse, with the Sun at one of the two foci. Perfect circles are incorrect (earlier model idea), parabolas and irregular shapes don't match the law.

Infiltration is the process where water enters the soil/ground. Percolation is movement through pores, absorption is uptake by plants/objects, saturation is when pores are full. So the correct term for water soaking into the ground is infiltration.

Renewable resources (like solar, wind, water) can be naturally replenished within a human lifetime. Non - renewable (like fossil fuels) take millions of years. The first option is wrong (non - renewable can't be replaced in human lifetime), third is wrong (extraction cost varies), fourth is wrong (non - renewable are not only in developing countries).

Answer:

D. Ellipses with the Sun at one focus

Second Question (Water Soaking into Ground)