An ecosystem now receives far less rain than it used to. the weather also became drier and hotter. over time, plants with structures that them to conserve water became more prevalent than plants that didn’t have those structures. from this information, we can conclude that the plants developed because of

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.

What type of reaction fuels the processes seen here?

Air can be considered a mixture. which statement does not explain why?