Answer : Salt and Sand are weighed and kept in different 50 Milliliter beakers because, the experiment is about studying and separating the homogeneous mixture. As salt crystals are cubic and sand grains are rounded oblong grains. If we mix it together it would require a physical method to separate them. So, before starting the experiment it needs to be weighed in different beakers.
Answer:
Sediment build up or the movement of water can transfer fossils to different places other than its original place.
Depends on what you’re going for. i’d say aquifers. but you can drink from clean rivers
Because it may not contain Hydrogen or Oxygen
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Explanation:
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