Sympathetic division and the parasympathetic division
Answer:
Acid rain is caused by emissions of sulphur dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.
An atom that has gained or lost electrons is called an ion
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Answer:</h2>
The correct answer is option D which is that endocrine control can control melatonin.
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Explanation:</h2>
As melatonin is released from pineal gland which is a part of endocrine system.The endocrine system is a chemical messenger system which has glands, which secretes certain chemicals known as hormones.These hormone acts on different organs to control different metabolisms in body.So melatonin which is hormone can be controlled by the endocrine system.
Droughts and high winds can lead to severe wildfires. Wind contributes to the flames spreading. Droughts mean dry plants and dry grass.
