Scientists say. "Lightning storms are caused due to friction

Explanation:

I am assuming your question is "How are lightning storms caused?"

When tiny ice droplets bump into each-other while falling from the sky build up electricity and the cloud fills up with electrical charges. The lighter positevely charged particles are at the top part of the cloud and the heavier negatevely ones sink to the bottom part of the cloud. And once they grow big enough a spark is formed (Positives and negatives attract) just like static electricity but scaled up

an obstruction

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6