Why did scientists come up with scientific names?

Which to produce involved from a symbiotic relationship of organisms which resulted in eukaryotic organisms contain chloroplast

The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping

When fossil fuels are burned, carbon dioxide is released. how does this gas impact the environment?