C. Differing levels of pre- and post- natal care
Answer:
Ranking of smallest to largest are given as under
Explanation:
1. one minute has approximately 18 million kilometers.
2. one hour has approximately one billion kilometers.
3. There are 6 trillion miles in one light-year.
4. The distance of earth from the sun is 92.96 million miles.
5. Solar System radius of 4.545 billion km.
There are many people in urban areas. If there are floods, it could kill a lot of people. Also, floods sometimes damage buildings. If the buildings collapse, it would cause a big problem.
