Lets Solve Something!

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Across
  1. 2. A force that oppresses motion
  2. 5. ______ is used in the extraction of many metals
  3. 7. Force per unit area is called _______
  4. 8. The strength of a force is expressed by its?
Down
  1. 1. Large scale storge of grains are done in?
  2. 3. Seeds of a few plants such as paddy are first grown in?
  3. 4. The process of conversion of sugar into alcohol
  4. 6. Paramecium is an example of __________