Hello. You did not submit the article to which this question refers, which makes it impossible for it to be answered accurately. However, I will try to help you in the best possible way.
It is only possible to find the cause and effect relationship in the article, after reading it. In that case, you should look in the text for the moment when a situation happens as a result of another situation. Therefore, the text must show an element (cause) which, when it happened, caused the creation of another element (effect).
Answer:
Gliders, like other aeroplanes, fly by using ailerons, rudders, and elevators. Gliders are equipped with flaps to control fall speeds by boosting lift and producing drag. Many modern gliders also have airbrakes or spoilers, which obstruct airflow across the wing, raising drag and lowering lift.
Answer: B!!
because it talks about nonliving things.
<span>A. I believe the Hubble telescope's photographs will open new frontiers in science.</span>
