Answer:
The group that remains unaltered is called the control group.
Dry ice is carbon dioxide is classified as a compound <span>and its physical state solid. A compound is any substance that consists of two or more seperate elements. The elements in this case are carbon and oxygen. Dry ice finds application in many different industries such as in the production of ice cream. </span>
Answer:
Un elemento es un material compuesto de un simple tipo de átomo, un compuesto es una sustancia formada por dos o más elementos que se combinan químicamente y una mezcla es la combinación de sustancias, iguales o no, que pueden ser separadas por métodos físicos.
<em>espero que esto ayude :)</em>
Answer:
B and C
Explanation:
- The region has constant electrostic potential means there is no difference in potential so no electric field as no V is present.
Hence electric field is 0
- As electric field is 0 no charge is flowing
<span>B is the right answer. Global warming is caused by carbon dioxide and water vapor which are not air pollution. Indeed most air pollution counteracts global warming by reflecting sunlight.</span>