Answer:
A- In transpiration, because some of its properties change, water undergoes a physical change but keeps its identity. In photosynthesis, because its identity changes, water undergoes a chemical change.
Explanation:
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Based on the two given descriptions of transpiration and photosynthesis, the type of change happens to water during each process is a physical change and chemical change respectively.
Photosynthesis is the process of making food by the leaves of the plants using the sunlight, water and carbon-di-oxide. The food is in the form of glucose which is then transported to each part of the plant.
Given is the descriptions which explains two ways that water is used by plants on a sunny day.
I. In transpiration, some liquid water in leaves changes into water vapor. The water vapor is released into the air via tiny pores in the leaves. This allows more liquid water from the soil to be pulled up by the roots and stem to replace water lost from the leaves.
During transpiration, the physical change happens to the plant.
II. Plants use this water for leaves in a process called photosynthesis. During photosynthesis, water and carbon dioxide break apart and recombine to form two new substances, oxygen and glucose.
During photosynthesis, the chemical change happens to the plant.
Thus, Based on the two given descriptions of transpiration and photosynthesis, the type of change happens to water during each process is a physical change and chemical change respectively.
Learn more about photosynthesis.
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