What causes a bolt of lightning A. Electrical charges build up in the clouds and on the ground

B. Electrical charges build up in the space between the clouds and the ground

C. Electrical charges build up on the ground

D. Electrical charges build up in the clouds

and its not physics but there is no science subject for some reason

the answer is b ) square root of 5

it takes about 30 days for it to break down

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles