Question

please respond to the following questions in writing, using complete sentences. comprehension questions 1) why are leaves green during most of the year? 2) what is the process of turning sunlight into energy in trees called? 3) what causes leaves to change color in the fall? writing prompt why do you think trees lose their leaves in the fall, and how does it help them survive the winter?

Explanation:

1. Leaves are green for most of the year because they contain chlorophyll, a pigment that absorbs red and blue light and reflects green light. Chlorophyll is essential for photosynthesis.
2. The process of turning sunlight into energy in trees is called photosynthesis. In photosynthesis, plants use sunlight, carbon - dioxide, and water to produce glucose and oxygen.
3. In the fall, leaves change color because as the days get shorter and cooler, trees stop producing chlorophyll. Other pigments like carotenoids and anthocyanins, which were present but masked by chlorophyll, become visible.

For the writing prompt, trees lose their leaves in the fall as a survival mechanism. Losing leaves reduces water loss through transpiration during the cold, dry winter months when it's harder for roots to absorb water. It also helps trees conserve energy as they enter a dormant state.

Answer:

1. Leaves are green during most of the year because they contain chlorophyll, which reflects green light and is crucial for photosynthesis.
2. The process of turning sunlight into energy in trees is called photosynthesis.
3. Leaves change color in the fall because the production of chlorophyll stops, revealing other pigments like carotenoids and anthocyanins.

For the writing prompt: Trees lose their leaves in the fall to reduce water loss and conserve energy, which helps them survive the winter when water is scarce and environmental conditions are harsh.