Agroup of students performing an experiment collect euglena samples from a pond and keep them in darkness in a vessel containing pond water which would be the conclusion for this experiment? a) the euglena cells remain alive because they are completely heterotrophic and feed on the organic matter present in the pond water. b) the euglena cells die because they are completely autotrophic in nature and are unable to create food in the absence of sunlight. c) the euglena cells, which are both autotrophic and heterotrophic, remain alive even in the absence of sunlight because they

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation:

answer: national resource conservation services

national resource conservation services is the us. based approach that provides technical and financial assistance for natural resource management. nrcs society in conservation of resources by involving in activities like farmland protection, flood prevention, watershed protection, urban conservation, conserves economic and environmental conditions. it conducts soil surveys and implements the policy of natural resources management on the society.