Answer:
it is a wave it is longtidnal wave it only moved in a medium it is not able to move in vacuum i.e if you are in space and talk your voice can't be heard bcz sound doesn't travel in vacuum
if sound doesn't move from one place to another you can't hear it
Answer:
Soap works by disrupting the cohesive forces between molecules. When plain water is dropped on a penny, water molecules strongly attract one another and the resulting surface tension is high. This is observed by the bubble-like shape formed by the water as more drops are added to the penny's surface.
Explanation:
Answer:
The meristem is a type of tissue found in plants. It consists of undifferentiated cells (meristematic cells) capable of cell division. Cells in the meristem can develop into all the other tissues and organs that occur in plants.
Answer:
D. All of the above
Explanation:
Enzymes are proteins, act as biological catalysts, and are sensitive to factors like pH and temperature.
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Answer:
Coliform count is a very important test that is done to determine water contamination because the presence of some types of coliform bacteria in the water indicates the presence of sewage or sewage waste.
The group of total coliforms includes several genera, all of which may be of fecal origin.
The most common fecal coliform is Escherichia coli
