The law of conservation of mass states that in a chemical reaction mass is neither created nor destroyed. For example, the carbon atom in coal becomes carbon dioxide when it is burned. The carbon atom changes from a solid structure to a gas but its mass does not change.
Dependency ratio is a measure of the number of dependents aged zero to 14 and over the of 65, compared with the total population aged 15 to 64
Answer: I think you were supposed to put a picture of your crossword puzzle...we can't answer because we don't know the questions
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How to stay safe during a natural disaster
1. You will need tosStay informed. Tune in to local authorities for information about evacuations and safety tips.
2. You should have a plan for evacuation. Know where you will go during a natural disaster and how you will get there.
3. Keep emergency kits on hand. Stock kits with flashlights, batteries, first aid supplies, and important identification information.
4. Avoid unnecessary risks. Do not leave your home unless instructed by the appropiate agents to do so.
5. you should go to the safest area in your home. During a flood, go to a higher floor. If a tornado is in the area, go to a basement or inner room on the bottom floor of your home.
6. Use covers to protect windows and doors in a case of windstorm
7. lastly avoid panicking at all costs
