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ira [324]
3 years ago
5

Where does electricity charge come from?

Biology
1 answer:
sukhopar [10]3 years ago
7 0

Lightning or two wires touching each other

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Every kind of rock can be changed into every other kind of rock.true or false
3241004551 [841]

Answer:

True

Explanation:

4 0
2 years ago
What is the similarity and difference for j and k
valentina_108 [34]

Your right J is sexual reproduction, and K is asexual reproduction. But sexual reproduction requires the presences of a male and a female. But other asexual reproduction doesn't, and just requires sexual maturity. They produce offspring in the form of spores for example.

6 0
2 years ago
A cross country runner runs 8 km in 2 minutes. What is his speed?
oee [108]

The speed of the cross country runner is equal to 4 km/min.

<u>Given the following data:</u>

  • Distance = 8 km.
  • Time = 2 minutes.

To determine the speed of the cross country runner:

Speed can be defined as the distance covered by an individual per unit time and it can be measured in kilometer per minutes (km/min).

Mathematically, speed is given by the formula;

Speed = \frac{distance}{time}

Substituting the given parameters into the formula, we have;

Speed = \frac{8}{2}

Speed = 4 km/min.

Read more: brainly.com/question/13102821

5 0
2 years ago
Why is vinegar used in food preservation?
weqwewe [10]
Vinegar is an extremely acidic liquid. Very few microorganisms (ie bacteria and fungus which cause foods to spoil) can survive in such an acidic environment. Among other effects, it can destroy their cell walls, and prevent their own enzymes working (enzymes are extremely pH sensitive). There are a small number of microorgamisms which are adapted to survive in extreme acidity. However, this adaptation prevents them from surviving in more 'normal' environments. Therefore, anything which can survive in the vinegar, will not likely survive on your kitchen surface, and the same is true the other way around. Therefore, as vitually nothing can colonise whatever is in the vinegar, the food will be very effectively preserved. . . . . . . . . . . you can say........................ . . the low pH a nd high acidity of vinegar destroy bacteria
3 0
3 years ago
A 66-year-old man with a history of alcoholism and poor dentition presents with 1 week of fever, dyspnea, and cough productive o
sergejj [24]

The most likely complication of this disease is the development of Empyema.

Explanation:

The patient has symptoms of fever, dyspenea (breathlessness with chest pain), cough and sputum which directs towards empyema as they are symptoms of pneumonia and prolonged symptoms would cause empyema.

The infiltrates in the posterior segments of upper lobe of the right lung results in bulging fissure causing necrosis lesion which would cause the complications of empyema.

The empyema is the condition in which pus cells are formed in thoracic cavity, in pleural fluid bacterial infection occurs due to pneumonia or surgery of chest.

The empyema risk is high for diabetics, pulmunary infected and alcoholism.

4 0
3 years ago
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