Alveoli are found in lungs and exchamge O2 and Co2 !!
so answer is last one !!
Answer:
In agriculture, leaching is the loss of water-soluble plant nutrients from the soil, due to rain and irrigation. ... As water from rain, flooding, or other sources seeps into the ground, it can dissolve chemicals and carry them into the underground water supply.
When it nears the sun, due to the power of solar wind
Your heart circulates your blood throughout your body everytime it beats.
