In questions like this one , you should first read the passage and then read the instructions. DO NOT read the alternatives. Then , with the information you got from the passage , try to awnser the question without looking at the alternatives. Now compare your awnser to the alternatives and eliminate the ones you are sure are wrong.
From the passage you learn that light pollution , caused by man-made lights , sometimes creates fogs and hazes that make the night sky look like a "dark sheet of paper".
If you compare what you understood from the passage to the alternatives , you ll realize that A) is the one that makes more sense and its more compatible with your awnser.
If you eliminated all alternatives you could but there still are 2 choices remaining and you are not sure which one it is , go back to the passage and try to find evidence for each alternative and try to eliminate one of the alternatives
AWNSER : A)
To begin with you must be 16 or 17 years old. You have to be able to support yourself , live on your own and manage your own affairs.
By Newton's second law, the net force on the object is
∑ F = 10.0 N + F = (7.0 kg) (1.0 m/s²)
where F is the unknown force. Since the object is accelerating to the east, F must be acting in the same or opposite direction as the known force that is also directed eastward. Solve for F :
10.0 N + F = 7.0 N
⇒ F = - 3.0 N
which is to say, F has magnitude 3.0 N and points toward the west.
Arnold Spirit Jr. (“Junior”) tells about his early life on the Spokane Indian reservation. How doctors predicted he would die from complications of hydrocephalus—his being born with excess spinal fluid on the brain. But, of course, Junior survived. The early condition, however, left Junior with a lisp and stutter. He had too many teeth and had to have some removed, and he is far-sighted in one eye and near-sighted in the other. Worst of all, as a small child he had seizures. Even today, other Indians on the reservation or, as Junior calls it, the “rez,” bully him and call him names like “hydrohead.” Junior’s best friend, Rowdy, often promises to protect him, but Rowdy’s own violent tendencies sometimes prevent him from being all that helpful. Junior’s parents are alcoholics and his sister, Mary, spends all her time in the family basement. Junior loves drawing cartoons, and many of his drawings are included in the book. Rowdy is extremely supportive of Junior’s art, and Junior thinks this proves his and Rowdy’s friendship.