Answer:
Three sodium ions are extruded from and two potassium ions are imported into the cell.
Explanation:
Sodium-Potassium pump occurs during active transport in which sodium ions are removed and sent outside the cell while on the other hand, potassium ions are moved inside the cell due to their needs in the cell. Three sodium ions are moves outside the cell whereas two potassium ions are imported into the cell with the use of ATP molecules. The exchange occurs till the equilibrium of inside and outside environment can be achieved.
Answer:
Greenhouse gases, such as carbon dioxide, methane, nitrous oxide, and certain synthetic chemicals, trap some of the Earth's outgoing energy, thus retaining heat in the atmosphere. This heat-trapping causes changes in the radiative balance of the Earth-the balance between energy received from the sun and emitted from Earth-that alter climate and weather patterns at a global and regional scale.
Multiple lines of evidence confirm that human activities are the primary cause of the global warming of the past 50 years. Natural Factors, such as variations in the sun's output, volcanic activity, the Earth's orbit, the carbon cycle, and others, also affect Earth's radiative balance. However, beginning in the late 1700s, the net global effect of human activities has been a continual increase in greenhouse gas concentrations.
Explanation:
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1. wear safety glasses
2.never touch heating source
3. keep away from overhead shelving
All of the above
all options are related to the explanation of aids
