A sociology teacher asked her students to complete a survey at the beginning of the year. One survey question asked, "How responsible are you?" Another question asked, "How many
siblings do you have?"
The probability that a student is responsible is 0.4, the probability that a student has 0
siblings is 0.45, and the probability that a student is responsible and has 0 siblings is 0.1.
What is the probability that a randomly chosen student is responsible or has 0 siblings?

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy

answer: the sun

explanation:

water cycle describes the evaporation of water from earth's surface, formation of clouds and precipitation water back onto the surface of earth. seventy percent of the earth is covered with water in the form of seas and oceans. the heat of the sun causes the evaporation of water from the surface of the ocean. the water vapors rise and condense to form water droplets. the collection of these water droplets form clouds which rain down again.

the evaporation of the oceans surface water as part of the water cycle is caused by the sun