4. Name two processes in Model 1 in which warer is converted to vapor. 5. Describe two methods by which water on land (in lakes and rivers) renurns to the occans, 6. Rain, slect, and snow are eramples of what? 7. If the air contains high levels of pollutants, what effect might this have on water quality? 8. Which process(es) of the water cycle-precipitation, evaporarion, condensation, nunoff, percolation or transpiration-might contribute to the addition of pollurants to rivers, lakes, and oceans? Why? 9. Which of the processes associated with the water cyde might be responsible for helping to clean or filter the water?

When we think of water turning into vapor, two crucial processes come to mind: evaporation and transpiration. Evaporation occurs when water from surfaces like lakes and oceans gets heated up by the sun, transforming into vapor that floats into the atmosphere. Transpiration, on the other hand, refers to the release of water vapor from plants, as they absorb water through their roots and then release it through tiny openings in their leaves. Together, these processes play a vital role in moving water from the earth's surface into the atmosphere. Now, when it comes to replenishing our oceans, rivers and lakes have their role to play. One method is through river runoff, where rainwater flows over the ground, picking up minerals and nutrients before eventually reaching oceans. Another path is groundwater flow—when precipitation seeps into the ground, it can move slowly underground and re-emerge at streams and rivers, merging them back into the ocean. This natural cycle ensures that water is continually returning to the vast blue seas that we know and love.