Which type of pollution is caused by the use of excess nutrients and pesticides? a) Crop
b) Air
c) Water
d) Soil

Match the description of each organism to the appropriate category

Number and variety of living organism; includes genetic, species, and ecological types

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.