- The glucose and oxygen create carbon dioxide - The cells release energy - The cells don't have enough oxygen to repeat this - The cells obtain more oxygen from the air - The cells repeat this process. What might be the first step of the process?
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Answer: Cells obtain glucose and oxygen

Q: - These substances rise into the high atmosphere - They react with water and oxygen - This creates a more acidic rain - The rain with the high acid content falls. What might be the first step of the process?
A: Chemicals like sulfur dioxide and nitrogen are released into the air

Question: - Composition of blood is regulated - Volume of water in blood is kept constant - PH is kept at a constant level - Kidneys help regulate blood pressure - Kidneys stimulate the making of red blood cells - Calcium levels are maintained. What might be the first step of the process?
Answer: Kidneys filter waste out of blood

[Q]: - They process it with millions of tiny nephrons - Remove all the waste - The kidneys return the blood back to the body through the renal artery - Send the urine with the waste to the bladder through the ureters. What might be the first step of the process?
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[A]: The kidneys receive blood from the renal artery

input: Please answer the following: - Mix the flour, sugar, egg, and water to make batter - Pour the mixture into a cake pan - Place the cake in the oven to cook - Take the cake out when it is cooked through - Let the cake cool - Serve the cake - What might be the first step of the process?
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output: Gather the ingredients for the cake

- Makes water acidic - Kills fish - Kills the soils in trees - Leaves are also harmed. What might be the first step of the process?
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Answer:
Acid rain enters the atmosphere and lands