Answer:
Explanation:
Local health department links up patient with adequate health care needed especially area where good health facilities is reduces and cannot be access, they prevent spread of disease by given immunizations.
They also help in avoiding spread of diseases and infections by working with other health agencies to create awareness.
In the environment, some of them ensure access to to good and clean water, they develop plans when emergency cases arises and during disaster.
size hence streams are little and rivers are bigger than streams because a stream connects between two or more rivers
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Answer:
Controlled group does not receive the treatment. It used as a benchmark to measure how different tested subjects affected the result of the experiment.
For example, the famous experiment of whether plants grow faster with music in one room and without music in the other room. The plant in the no music room is the controlled group.
A lava flow it the spread of lava that pours out of a volcano