Answer:
Common examples include carbon, sulfur, oxygen, iron, copper, aluminium. Elements are represented by symbols. Compounds are substances made from atoms of different elements joined by chemical bonds. They can only be separated by a chemical reaction.
Explanation:
Substances can be categorised as either elements or compounds. Both of these are made up of atoms, the only difference is an element is made of one type of atom whereas compounds are made of two or more different types of atoms.
Answer: To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight.
Answer:
A compass
Explanation:
A compass tells you which direction you are going whether that be North, East, South, or West. A map I'd a picture or drawing of a certain area.
Cell walls made of cellulose are present in plant cells. Human cells (skin, fingernails, muscle, etc.) do not have cell walls. Both plant and human fingernail cells have ribosomes and mitochondria. There are no cilia on either of the cells. Therefore, answer C is correct. Hope this helps! :)
Because the HCl In the stomach is diluted so it isn't as strong as pure HCl
