Bronchitis is a condition that’s characterized by coughing and the secretion of mucus. a person with bronchitis has inflamed airways, which makes it hard to breathe. where does a bronchitis infection start? a. brain b. heart c. lungs d. throat me

The correct answer is option D. lungs.

Explanation:

Bronchitis is an infection that cause inflammation in respiratory parts such as bronchial tubes. It is characterized by the coufh with mucus, wheezing, mild fever shortness of breath.

The starting point of the infection is throat that make it hard to breath and tightening of the chest also occurs in this infection. Bronchitis can be of two type acute and chronic.

Thus, the correct answer is option D. lungs.

when the volume of gas is   changed from   717.73 ml   to 852 ml   the temperature will   change   from 315   c to 452   c

    calculation

this is calculated using the charles law formula

that is,   v1/t1 = v2/t2

          v1=?

        t1 = 315 c   into   kelvin = 315 +273 = 588 k

        v2 = 852   ml

        t2 = 425c + 273 =698 k

make v1   the subject of the formula ( by   multiplying both side by t1)

  v1=( v2 xt1) / t2

v1= (852 ml   x 588 k)/ 698 k= 717.73 ml

the answer is a for sure mark brainliest i had got this right on usatestprep