In a lake ecosystem, the atmospheric sciences component of environmental science might deal with a. air pollution b. study of lake organisms c. study of chemicals dissolved in the lake d. study of the impact of surface runoff select the best answer from the choices provided a b c d

An atom of nitrogen had seven protons in its nucleus. how many electrons does it have

Recent research by marine biologists suggests that bottlenose dolphins have names for themselves. scientists played sounds they had identified as the names of particular dolphins, putting them through a synthesizer so that they did not sound like the voices of particular dolphins. the researchers found that dolphins would respond to the names of other dolphins that they were related to or associated with, but they ignored the names of strangers. this discovery suggests a much greater degree of self-awareness in aquatic mammals than was previously suspected. if this research holds up, what does it suggest about dolphins?

Consider the model of the oxygen cycle on earth. the majority of earth's oxygen reservoirs are found in the a) atmosphere. b) biosphere. c) hydrosphere. d) lithosphere.