When biologists studied photosynthesis, they used an isotope of oxygen called 18o. it will not harm the photosynthesis process but is used to track where the atoms go during the process. if the scientists used this radioactive oxygen in the carbon dioxide, in which molecule would the oxygen end up?

economic impact of malaria is estimated to cost africa $12 billion every year. this figure factors in costs of health care, absenteeism, days lost in education, decreased productivity due to brain damage from cerebral malaria, and loss of investment and tourism.

c: warm water flows from the western tropical pacific toward south america. that should be the right answer! hope it .

c. establishing proper sleep hygiene

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.