Answer: Light
Explanation: Light can travel in empty space or vacuum. It doesn't need any medium to which it travels.
The food chain will mess up
Bacteria and area head are both kingdoms that are all prokaryotic. However, previous classifications identify both of these categories under the kingdom of monera.
Desertification extends beyond the expansion of existing deserts to include land degradation due to human activity in drylands. Land degradation destroys or reduces the productivity of the soil, and is caused by excessive and unsustainable activities such as deforestation, overgrazing, poor land management, soil salinization, and soil erosion.
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D. Weather refers to short-term conditions, whereas climate refers to long-term conditions. hope this helps!