The graph of f(t) = ax² +bx +c, the height of a golf ball hit after t seconds, is shown. The point P(2, 70) represents the height of a bird at a given point in time. Which of the following expressions correctly compares the height of the ball and the height of the bird at that point in time?

If 2y = x + 40 and 3x = y + 20, what is the value of x + y?

Which of the following is an equation of the line in the xy-plane?

if $$x^2\ =\ a+b$$   and $$y^2\ =\ a+c$$  , which of the following is equal to $$\left(x^{2\ }-y^2\right)^2$$  ?

Which of the following is an example of a simile? a) The wind howled like a wolf. b) The sun is a golden ball. c) The flowers danced in the breeze. d) The mountain stood tall and majestic.

What is the meaning of the word 'conundrum'? a) A difficult problem b) A simple solution c) A clear explanation d) A common occurrence

Which of the following sentences is grammatically correct? a) Me and my friends went to the movies. b) My friends and me went to the movies. c) My friends and I went to the movies. d) Me and my friends went to the movie.

What is the meaning of the word 'exacerbate'? a) To improve b) To worsen c) To ignore d) To understand

Identify the correct form of the verb to complete the sentence: The dog ________ in the park every morning. a) run b) runs c) ran d) running

Which of the following is an example of a metaphor? a) The moon is a silver coin. b) The waves crashed against the shore. c) The stars twinkled in the night sky. d) The tree branches danced in the wind.

Atmosphere of Venus

Data from the Pioneer spacecraft of NASA apparently prove the theory that the high surface temperature of Venus is due to an atmospheric greenhouse effect caused mainly by a blanket of carbon dioxide. Such a greenhouse effect is created when energy in the form of sunlight easily passes through a planet’s atmosphere, warms its surface, and is converted to heat radiation that is then held in by the atmosphere from top to bottom. Venus has a relatively thin atmosphere like the Earth’s, but Venus’ atmosphere consists of more than ninety percent carbon dioxide, compared to less than four percent in that of the Earth. Because of its higher percentage of carbon dioxide, Venus’ atmosphere traps much more heat radiation than does the Earth’s. Thus, the Venus studies are believed to be important to the understanding of possible adverse effects on the Earth’s agriculture that could result from the long-term use of fossil fuels, which add carbon dioxide to the atmosphere.

2. We understand from the passage that the atmosphere of Venus____________

How Does Brain Work?

Theories about how brain works remain a topic of debate. It is agreed, though, that the hippocampus, a part of the brain, is undeniably important for memory. When we experience something, the information is sent via our senses to the hippocampus, where it is processed. Scientists believe that brain cells called neurons first transform the sensory stimuli we experience into images in our immediate memory. Then, these images are sent to the hippocampus and stored temporarily in short-term memory. In the hippocampus, information is organized, and it is during this process that parts of the image of our experience fade away. Finally, certain information is then transferred to long-term memory in a section in the frontal lobe of the brain known as the cerebral cortex. Scientists think this process may happen while we are sleeping, but exactly how the information is transferred from one area of the brain to another is a mystery.

4. This reading is mainly concerned with__________

People With Extraordinary Abilities

Fictional stories about people who have extraordinary abilities have always attracted people’s attention. One of them is the story of Vera Petrova, who is able to perceive things with different parts of her skin, and through solid walls. One day she comes into his father’s office and puts her hands on the door of a locked safe. Suddenly she asks her father why he keeps so many old newspapers locked away there. Vera’s curious talent is brought to the notice of a scientific research institute and she is given a series of tests by a special commission. During these tests she manages to read a newspaper through an opaque screen and then she describes the figures and colors of a picture hidden under a carpet. During all these tests Vera is blindfolded; and, indeed, except when blindfolded she lacks the ability to perceive things with her skin. It was also found that although she could perceive things with her fingers, this ability ceased the moment her hands were wet.

7. As we understand from the reading, Vera Petrova_________