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nikdorinn [45]
3 years ago
15

A pond is located beside an open mine. Mercury from the mine contaminates the river water. This is an example of

Biology
1 answer:
OLga [1]3 years ago
6 0

Answer:

The correct answer is C. Point source pollution

brainliest :)

Explanation:

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Vhat do scientists need to look at before developing an argument?
ikadub [295]

Answer:

The validity of data, claims, hypotheses, and observations.

Explanation:

Making an argument and discussion over the scientific arguments are considered important to the scientific method.

The argument should be made in a way that it should check the validity of the hypothesis. The scientist who has to make an argument should consider various steps of scientific method like hypothesis which should predict the explanation of the natural phenomenon.

The person should consider the validity of the data whether it supports the hypothesis or not and observation of the experiment.

Thus, the selected option is the correct answer.

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3 years ago
Calcium has an atomic number of 20 and an atomic mass (weight) of 40. Therefore, we know that calcium has
romanna [79]
It would have 20 protons, 20 neutrons, and 20 electrons. Protons and electrons are USUALLY (I say usually because of the different types of atoms) the same as the atomic number. To find neutrons you take the atomic mass minus the atomic number. 40-20=20
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3 years ago
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What happens if there are many producers
VikaD [51]
The consumers have a lot of choices for them to eat!
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Enzymes work only on a single substrate, in most cases. true or false.
borishaifa [10]
Most enzymes do in fact work on a single substrate in most cases, this is because of the enzyme - substrate specificity. Certain reactant molecules acting as substrates can only fit in the "lock" of particular enzymes and undergo a conformational change and result in Unique products to be released after the reaction has occurred.
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Which of the enzymes below can synthesize and proofread a dna sequence?.
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exonuclease

Explanation:

According to Oxford Languages, exonuclease is:

an enzyme which removes successive nucleotides from the end of a polynucleotide molecule.

7 0
2 years ago
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