effect is from the modification of land surfaces. Waste heat generated by energy usage is a secondary contributor.
The answer is two and four hope this helps
Answer: <u>Option 4; Oxygen gains electrons and hydrogen to form water.
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Respiration is a process where glucose is used and energy is released stored in this molecule. Oxygen is used during respiration as well and it gains the electrons and hydrogen to form water. And, gain of electrons is an oxidation reaction. So answer is option 4.
Since, oxygen is consumed during respiration, option 1 is incorrect.
Loss of electrons is reduction, so option 2 is also incorrect.
Glucose is used in respiration, thus option 3 is incorrect.
Egg cells are produced in the almond shaped organs. This is called the Female Reproduction System. Hope this helps. Got any questions? Just comment down below if you're unsure about my answer!
Sedimentary, igneous, and metamorphic. Hopefully these are correct
