Lightning strikes a tree and stars a forest fire. this is an example of the affecting the .

Liquid water turns into water vapor at which step in the water cycle

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

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.