Answer:
<u>Collenchyma cells</u> are elongated and filled with water. The pressure of the water against the cell walls creates a stiffness that gives celery its crunch. <u>These are the strings in celery.</u>
Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system. The device preserves the input power and simply trades off forces against movement to obtain a desired amplification in the output force. The model for this is the law of the lever. Hope this helps and please mark me as brainlest and like:)
Solids-holds its shape
Liquid-take the shape of whatever its in
Gases- don't take a shape up
Answer:
Treatment of industrial effluents through the extraction of pollutants before discharge to the rivers
Explanation:
Water contamination is the addition of undesirable materials into rivers, lakes and other bodies of water. Polluted water is unclean and unsafe to use therefore policies are designed to reduce water contamination that possesses risk to human health.
I’d say A is probably the correct answer , but if not A , then definitely B.
