<span><span>Porosity is the amount of empty space in a rock or other earth material (like sand) - in other words, it's how much water a material can hold.
Permeability refers to how well water flows through a material - the flow is controlled by how large the pores are and how well connected the pores are in a given object.</span><span>Therefore, there these are two primary factors that limit the movement and the amount of water (or other fluids) retained in rocks/sedimentary materials.</span></span>
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a night when the light from the sun is not causing a light effect where the light where the sun cancels out the moon light
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Studying geography creates a global citizen. Those who know geography better understand the interdependence of our world and how we are connected through location, place, movement, region, and human-environment interactions.
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a. GMO-based farming is considered an environmentally safe method of addressing global malnourishment.
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Farming with GMOs is something that's being done right now and it hasn't solved malnourishment, also, it's not really great for the environment or for health.
