Answer:
OD
Explanation:
Scientists have conducted experiments that show that smoking damages lungs, and causes lung cancer.
Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.
Question Two: Genetic variation. As healthy as someone might be, genetic variation is required to balance the differences out. This is to prevent possible diseases that aren’t present but may be if it becomes dominant.
Question Three: Variation is a good thing for species because it allows multiple possibilities for an organism, allowing a higher chance of survival. The higher the diversity, the more likely it is for people to not die from the same genetic diseases. Similarly, in a classroom, diversity can allow people to have different ideas, opinions, and answers. This lets other learn from one another within the environment rather than just wasting time listening to something that one knows already.
A cation is positively charged. An anion, on the other hand, is defined as a negatively charged ion (the opposite of a cation)
