Matter is anything that is made of atoms and has mass
Radi Carry developed a theory named "<span>Spontaneous generation". This theory assumed that living creatures can be generated from non-living things and he used this theory in order to explain the origin of flies.
He carried out another experiment with three jars to check that bad air did not cause any flies.</span>
Answer:
When you exercise it causes your muscles and your pearl your pures in your skin to produce sweat and cause pain to your nervous system telling you that is exhausting
They release CO2 (just like us, when we breathe). But, when plants are photosynthesizing. They release the oxygen through the same pores that allow the CO2 to enter their leaf cells.
I believe that 2 is correct. :)
