Well, which weighs more? 2 tons of bricks or 2 tons of feathers? A lot of people would say bricks. But no, you just have to use a lot more feathers to equal the same weight. That is what you are looking for here. It weigh the same no matter what you put in it.
Answer:
Blood can carry diseases in it so be careful.
Try to wash your hands before and after helping someone.
Use plastic gloves if you have them.
Cover cuts and scratches on your hands if you don’t have gloves.
Help your friend to deal with the bleeding if she can.
Explanation:
Give her a first aid kid/ as it will have all the supplies in it that are needed, the teacher should get help if it's a serious bleeding.
Answer:
The correct answer is - hard water reacts to form the calcium or magnesium salt of the organic acid of the soap.
Explanation:
Soaps are made up of fatty acids or oils by treating with strong alkali and are salts of sodium and potassium. Hard water, on the other hand, has a high concentration of minerals in comparison to soft water. When hard water and soap are mixed together the salts of the minerals like Ca2+ and Mg2+ ions present in hard water react with fatty acids of the soap.
The sodium salts are changed to the salts of calcium and magnesium which are precipitated to an insoluble substance. The insoluble salts of the calcium or magnesium dirt stick on the clothes thus cleaning ability of soap is reduced.
Answer:A. Both animals and plants have changed over time.
Explanation:
Because plants and animals go through adaptations.