Which best describes the greenhouse effect? a. nitrogen and oxygen in the atmosphere release heat. b. nitrogen and oxygen in the atmosphere trap heat. c. water vapor and carbon dioxide in the atmosphere release heat. d. water vapor and carbon dioxide in the atmosphere trap heat.

Hich of the following best summarizes the text’s depiction of the ancient indus valley cities (namely harappa and mohenjo-daro)? a. the cities were very plain and simple; the people did not focus on art and architecture, devoting their time instead to agriculture and the bare essentials. b. the cities were adorned, or decorated, with almost overwhelming displays of wealth and artistic architecture. c. the cities were extremely clean, relying on an advanced water and sewer system, though this was mainly constructed for the innermost areas of the cities. d. the cities were clean and peaceful, and they were designed in an extremely organized fashion, using an advanced water and sewer system to keep them this way

Give reason sugarcane waste can be recycled into useful products

Since 1980, which three countries have either attacked or been attacked by iraq? a. iran, turkey, united states b. iran, israel, jordan c. iran, kuwait, united states d. iran, saudi arabia, egypt