Answer:
double displacement reaction also neutralization reaction cause of acid and base
Answer:
An expansion of suitable living space
Explanation:
Increase occurs in the population of the organism only occurs when there is a suitable environment present for that organism. Suitable environment means that place where all the needs of the organism are available such as food, water and shelter etc. If food and water are present in large amount and decrease in animals occurs that prey on that organism will increase the population of the organism.
Answer:
Two human needs are food and water. We need food to survive so we dont starve to death. And water is most important because without water after around five days, you die. Heat technology could be fire. We use fire to distill salt water. Distilling salt water boils the bacteria and so it would be safe to drink. We also use fire to cook the food we have gotten or hunted so we dont get infected with deadly bacteria and viruses.
Explanation:
Hope this helps. Have a nice day!
Properties of matter can be broadly classified into two categories:
-Physical properties, these usually involve a change in the state of matter
-Chemical properties. these involve a change in the chemical composition of matter.
Now, physical properties can be further classified as:
Extensive: these depend on the amount of the substance, eg: mass, volume
Intensive: these do not depend on the amount of the substance eg: density, color, melting point, boiling point
A physical property that does not describe a change in state is color. For example: copper sulfate is a compound which is a blue in color. Thus, color provides information which describes the appearance of matter. In contrast, properties like melting or boiling point suggests a change in the state of the substance.
Answer:
there is one carbon atom and there are two oxygen atoms. So, in total there are three atoms.
Explanation: