A. Conmensalistic
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Answer: d. Perform a windshield survey
Explanation:
Environmental health risks include air pollution, disease vectors, lack of water and inadequate sanitation, electronic waste, and chemical hazards.
Conducting a windshield survey is a valuable first step in identifying possible safety threats to the environment. This offers first-hand neighbourhood information and areas of concern which need to be investigated.
Hence, the correct option is d.
Answer:
radiometric dating methods
Explanation:
The oldest rock layer will be at the very bottom, and as time goes on, more layers will form making the top layer the youngest layer and the bottom layer the oldest. This method can determine the amount of radioactive decay of certain elements which can help them make a geologic time scale.
Some animals get water from water from plants they eat and others drink water.
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<span>Mendeleev was the first scientist to arrange the known elements into a table. Mendeleev decided to arrange the known elements by atomic weight and allowed Mendeleev to predict the discovery to new elements by finding and placing gaps in the table where there was a jump in atomic weight.
Moseley used the x-ray wave lengths of the elements are arranged them in a table using the experimental data. This new technique resulted in some differences in the two tables like argon and potassium switching paces. cobalt was placed before nickle and tellurium was before iodine.</span>