Answer:
B
Explanation:
During the process of inhalation, the lung volume expands as a result of the contraction of the diaphragm and intercostal muscles (the muscles that are connected to the rib cage), thus expanding the thoracic cavity. Due to this increase in volume, the pressure is decreased, based on the principles of Boyle's Law
The Percentage of sand silt and clay, and the <span>amount of each size of particle in the soil. Hope this helps !!
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A year
Every time the Earth revolves around the sun, a year has passed
As we know that the plants is universal producer.Plant absorb CO2 from atmosphere by the help of photosynthesis from where plant make glucose ,oxygen and energy and then plant exhale O2 but in plants there is another process is going on called respiration which exhale same amount of CO2 as consumed in photosyntesis and in autumn the leaves fall on the soil which on later decomposed and release carbon dioxide this whole cycle is called carbon cycle !!