Baking powder is a mixture of baking soda and a mild edible acid such as tartaric acid
The answer you are looking for would be a colliod. Hope this helps have a great day!!
Answer: option A.
A physical change occurred in which the iron remained iron, but lost one of its physical properties
Explanation: magnetization and demagnetization is a physical change as no new substance is form and it is easily reversed. When an iron rod is magnetized, it can loss it magnetic property by hitting it. So when an iron rod which is magnetized falls from a height it can also loss its magnetic property
The rotation of the Earth causes sunlight to move from east to west and then it just keeps repeating it over and over again.