29. Why is a scientific theory the most powerful explanation scientists have to offer? (2 points) O Many different scientists have added data from their own experiments to build the theory.
A theory is the same things as a hypothesis.
Scientific theories are usually the work of a single scientist.
Technology is used to provide the experimental data for a scientific theory.

think its the third option

radiation warms things up temp rises convection currents air circ windy weather

the total distance traveled by the car is

30km + 49km = 79 km .

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