Answer:
Elements and compounds cannot be broken down into simpler substances by an ordinary process because of the following reasons.
1) Elements cannot be broken down by chemical or physical methods because elements is composed of atoms which are indivisible.
2) Compound cannot be broken down into simpler substances by ordinary process because elements present in the compound are combined with each other chemically.
Answer:
Is this a true or false question?
Explanation:
All of the above.
<h3>What are sulfur oxidizing bacteria?</h3>
Any of a wide range of microorganisms that can metabolize sulfur and its components and are significant in nature's sulfur cycle are known as sulfur bacteria. Hydrogen sulfide (H2S), sulfur, and thiosulfate are a few of the typical sulfur compounds that are used by these bacteria as a source of energy. Sulfate is the end result of the oxidation of sulfur.
In deep earth deposits, <em>Thiobacillus</em>, which is common in both marine and terrestrial settings, produces sulfuric acid, which dissolves metals in mines but also corrodes concrete and steel. It also oxidizes sulfur, generating sulfates that are helpful to plants.
I understand the question you are looking for is this:
In seawater, sulfate is the most common anion after chloride. Which of the following is correct with respect to the use of sulfate by some bacterial groups?
- Oxidized sulfur-containing molecules have redox potentials lower than those of the nitrogen series.
- Oxidized sulfur molecules such as sulfate and sulfite serve as electron acceptors.
- Sulfate and sulfite can receive electrons from hydrocarbons.
- Sulfate-reducing archaea and bacteria are widespread in the ocean.
- All of the above.
Learn more about sulfur bacteria here:
brainly.com/question/13187750
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The intermittent recovery test differ from the intermittent endurance test in the way that intermittent recovery test uses twenty-five meter long strip of floor space instead of twenty-two and half meter long strip.
<u>Explanation:</u>
In intermittent endurance test, twenty-two and half meter long strip divides the floor into two sections - one of twenty meter and another of two and half meter. The subject is supposed to run in the longer section a per CD until he reaches the other side or he hears the recorded beep.
One hearing the beep, he must turn and return back to his starting point. On reaching there, he is given five seconds time to walk or jog in the shorter section which is of two and half meter.
If the subject fails to cover twenty meter long section before beep sound, a warning is issued to him.
In case of intermittent endurance test, twenty-five meters long strip is used to divide the floor section into parts, one of one of twenty meter and another of five meter. In this test extra five seconds are also added for active break time, thus making it of ten seconds.
