Which statement describes an unanticipated impact of a technological advance?
A. Continued research and development has produced white LED
lights that have gradually replaced traditional fluorescent and
incandescent bulbs.
O B. Artificial neural networks have been developed to allow doctors to
diagnose patients more quickly and accurately.
C. The development of antibiotics allowed people to be treated for
bacterial infections, but their overuse has led to strains of bacteria
that cannot be killed by available antibiotics.
D. The nonnative plant kudzu was brought to the United States in
order to curb erosion, but it destroys native plants.
Please help me

the development of antibiotics allowed people to be treated for bacterial infections, but their overuse had led to strains of bacteria that cannot be killed by available antibiotics

Explanation: I just took the test

acceleration = (change in speed) / (time for the change)

change in speed = (20-120)= -100 m/s.

1.5 min = 90 sec

acceleration = -100/90 = -1.11 m/s^2.

we don't care about the 150kg or the 2,500 meters. they don't make any difference.

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d₁ = displacement of tern from arctic to antarctic = 11000 miles

d₂ = displacement of tern from antarctic to arctic =   - 11000 miles

d = total displacement for the journey

total displacement for the journey is given as

d = d₁ + d₂

d = 11000 + (-11000)

d = 0 miles

t₁ = time of travel from arctic to antarctic = 3 months = 3 x 30 days = 90 days

t₂ = time of travel from antarctic to arctic = 3 months = 3 x 30 days = 90 days

t = total time of travel

total time of travel is given as

t = t₁ + t₂

t = 90 + 90

t = 180 days

average velocity is given as

average velocity = total displacement/ total time

v = d/t

v = 0/180

v = 0 miles/day