The leaves of plants contain specialized parts that absorb energy from sunlight. Which feature would help a plant better compete for sunlight?

leaves that change color
colorful flowers
larger overall leaf size
a shorter stem

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.