1.Hans and Zacharias Janssen created the first microscope.
2.Robert Hooke was the first to use the word “cell.”
3.Anton van Leeuwenhoek observed small organisms he called “animalcules.”
4.Matthias Schleiden theorized that plants are made of cells.
5.Theodor Schwann theorized that animals are made of cells.
6.Rudolf Virchow theorized that cells come from other pre-existing cells.
Solid, ductile (can conduct heat), malleable (can be shaped differently).
Fog is a cloud that has its base at or near the ground.
The answer is letter D. Fog results when atmospheric water vapor condenses to
the extent that the new forms, water droplets or ice crystals, become visible. Saturation
of the air and sufficient condensation nuclei are ordinarily prerequisites for
the formation of fog. One of the great hazards associated with fog is a lack of
visibility.
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Answer:
it takes two hydrogen atoms for every oxygen atom to produce this reaction, so the mole ratio between hydrogen and oxygen is 2:1
