Upon what observation did kepler base his second law?

someone , im really confused : (

answer:

kepler's second law - the planets sweep out equal areas in equal times was based on his observations of mars. the second law is actually a continuation of the first law. here is a nasa link with a more in depth explanation and a few diagrams:

economic impact of malaria is estimated to cost africa $12 billion every year. this figure factors in costs of health care, absenteeism, days lost in education, decreased productivity due to brain damage from cerebral malaria, and loss of investment and tourism.

cuz some people don't have enough food. that's why we need more ppl to donate food to the hungry.