A city plans to convert all of its electricity sources to solar collectors. This is one part of a new plan to manage the city’s energy resources. How will this plan most likely affect Earth’s systems? a Air pollution in the atmosphere will decrease. b Water used from the hydrosphere will increase. c There will be more mining of fossil fuels from the geosphere. d There will be less food available for animals in the biosphere.

amber has allowed scientists to study dna that has been preserved over millions of years.

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.

its b. greenhouse gasses trap uv rays for heat so that the plants stay alive.