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The Water Cycle
Water is needed to sustain practically all life functions on planet Earth. A single drop of this compound is composed of an oxygen atom that shares its electrons with each of the two hydrogen atoms.
The cycle starts when precipitation, such as rain, snow, sleet, or hail, descends from the sky onto the ground. Water that is not absorbed immediately from the precipitation is known as runoff. The runoff flows across the land and collects in groundwater reservoirs, rivers, streams, and oceans.
Evaporation takes place when liquid water changes into water vapor, which is a gas. Water vapor returns to the air from surface water and plants.
Ultimately, condensation happens when this water vapor cools and changes back into droplets of liquid. In fact, the puffy, cotton clouds that we observe are formed by condensation. When the clouds become heavily laden with liquid droplets, precipitation ensues.
Knowing that the cooling of water vapor results in condensation, one could conclude that ______ is a factor in the evaporation process.
- A. Humidity
- B. Heat
- C. Electrons
- D. Runoff
Correct Answer: B
Rationale: The correct answer is B: Heat. The process of evaporation involves the conversion of liquid water into water vapor, which requires heat energy to break the bonds between water molecules. When water vapor cools, it condenses back into liquid form. Therefore, the presence of heat is a crucial factor in the evaporation process, as it provides the energy needed for water molecules to escape into the air as vapor.
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ELECTORAL COLLEGE
The Electoral College has nothing to do with college and contains no students. The Electoral College consists of votes that each state acquires based on the number of representatives it has in Congress. Each state has two electoral votes because each state has two senators. The remaining electoral votes are determined by the number of Congressmen, the number of which is based on the population of the state established by the Census taken each decade. During the presidential election, most states cast all their electoral votes for the candidate who wins the popular vote in that state. It's all very confusing, but the founding fathers know what they were doing. Downloaded by Abdul Hamid (a.ahamid2181@gmail.com) lOMoARcPSD|10672023 HESI A2 V2 Grammar, Vocab, Reading, & Math Questions with Answers). By having and using the Electoral College candidates' campaign in every state, but just because they win the popular vote across the country doesn't mean they will always win the election. Case in point, in election 2000, Al Gore won the popular vote across the country, but George W. Bush won more electoral votes. Therefore, he became our 43rd president.
What does the term 'cast' mean in relation to the Electoral College?
- A. To throw away
- B. To give oneÄ€™s vote
- C. To create a mold
- D. To choose a role
Correct Answer: B
Rationale: In the context of the Electoral College, the term 'cast' means 'to give oneÄ€™s vote.' When states cast their electoral votes, they are essentially giving their votes to a specific candidate based on the outcome of the popular vote within that state. This process is crucial in determining the final outcome of the presidential election, as the candidate who receives a majority of the electoral votes becomes the president. It is important to understand the terminology associated with the Electoral College to grasp the intricacies of the U.S. electoral system.
Food
Food and drink are necessary and desirable, but their abuse can cause serious physical and mental problems. Many physicians believe that overeating is one of the countryÄ€™s main health problems, since It places a great strain on the heart, can lead to diabetes, and often shortens the individual's life span. To fill an emotional void, people often turn to food when they are bored or lonely.
Another area of concern is alcohol consumption. The results of alcohol abuse are widely publicized. The social drinker who becomes alcoholic, the drunken drivers contribution to highway deaths, spousal and child abuse, are all concomitant problems associated with alcohol abuse.
The author seems to
- A. Favor moderation.
- B. oppose regulation of personal habits.
- C. favor a strict diet.
- D. oppose drinking alcohol.
Correct Answer: A
Rationale: The passage discusses the problems associated with food and alcohol abuse, emphasizing the health risks related to overeating and alcohol consumption. However, it does not advocate for extreme measures such as strict diets or complete opposition to alcohol. Instead, the author's focus on the consequences of abuse suggests a preference for moderation in eating and drinking habits. Therefore, the correct answer is A, indicating that the author seems to favor moderation.
Have you ever wondered why the whistle of a traveling, distant locomotive predicts its approach several yards before anyone actually sees it? Or why an oncoming ambulanceĆ¢Ä‚¬Ä„¢s screaming siren is heard momentarily several feet before the ambulance comes into full view, before it passes you, and why its siren is still heard faintly well after the ambulance is out of sight?
What you are witnessing is a scientific phenomenon known as the Doppler Effect. What takes place is truly remarkable. In both of these instances, when the train or ambulance moves toward the sound waves in front of it, the sound waves are pulled closer together and have a higher frequency. In either instance, the listener positioned in front of the moving object hears a higher pitch. The ambulance and locomotive are progressively moving away from the sound waves behind them, causing the waves to be farther apart and to have a lower frequency. These fast-approaching modes of transportation distance themselves past the listener, who hears a lower pitch.
What is the main idea of the passage?
- A. Trains and ambulances emit distinctively loud noises.
- B. Low-frequency waves produce high-pitched sounds.
- C. High-frequency waves result in low-pitched sounds.
- D. The Doppler Effect explains why sound is heard more strongly initially and then faintly after a moving object has passed.
Correct Answer: D
Rationale: The main idea of the passage is to explain the phenomena of the Doppler Effect in relation to the sound produced by moving objects like trains and ambulances. The Doppler Effect causes sound waves to be compressed and have a higher frequency as the object approaches, resulting in a higher pitch. Conversely, as the object moves away, the sound waves are stretched, leading to a lower frequency and a lower pitch. This effect clarifies why the sound is heard more loudly when the object is approaching, and then faintly when it has passed. Therefore, choice D is the correct answer as it summarizes the key concept discussed in the passage.
The ebb and flow of laughter and silence fills the room as four old friends gather to engage in a
round of Bridge playing. For the beginner, Bridge can be complicated, but with time, effort, and a good teacher, even the novice can become proficient. Composed of two main parts, bidding and playing, Bridge requires the player's undivided attention. The dealer deals the entire deck of playing cards evenly between the for players, with
each person receiving thirteen cards. In the bidding portion of the game, the four suits of cards in the deck are ranked highest to lowest as follows: spades, hearts, diamonds, and finally clubs. However, during play all the suits of cards are
considered equals, and they go from highest to lowest from the ace being high to the two cards
being low. The highest number of tricks wins. A trick is one card played by each player for a
total of four. After the lead player lays down his/her card, the other players follow suit, if
possible. The highest card within the four "same suit" cards played wins the trick and picks up all
four cards. If a player cannot follow suit, he/she plays any card, but to make the game more
interesting and challenging, one suit is named a trump suit which means that if a player plays a
card from the trump suit, it always wins the trick. If two cards from the trump suit are played, the
highest card within the trump suit wins the trick. Obviously, the team with the most tricks wins
the hand.
The passage implies that
- A. Playing bridge requires concentration.
- B. Bridge is an extremely easy game to play.
- C. Bridge is only for older people.
- D. Bridge is only for women.
Correct Answer: A
Rationale: The correct answer is A: 'Playing bridge requires concentration.' The passage mentions that Bridge requires the player's undivided attention, indicating that concentration is necessary to play the game effectively. The intricate details provided about the rules and gameplay of Bridge emphasize the need for focus and mental engagement. While the passage does not suggest that Bridge is easy or exclusively for older people or women, it highlights the complexity and attention required to excel in the game.
Lightning Strikes
The old wives' tale of "Lightning never strikes twice" has been proven untrue time and time again. Lightning forms from negative and positive charges within clouds and from the earth below. When these charges react with each other, the air between the cloud and the earth ionizes, which produces a lightning flash. Lightning is actually a series of multiple events consisting of a leader stroke of lightning, followed by as many as 40 smaller strokes of lightning. Being just split seconds apart, these strokes of lightning often reflect off the lining of the clouds.
Lightning rods that extend from above the roof to the ground protect buildings by forming a low resistance path for the lightning so that the lightning does not enter the building, but rather defuses as it penetrates the ground.
Some myths about lightning need to be explained. Lightning does strike tall buildings often, and during a particularly violent storm, a tall building may be hit by lightning several times. The safest place during a thunder and lightning storm is in a metal car or lying flat, face down, in the open, not under a tree as the myth suggests.
Many people believe that thunder and lightning are connected; however, this proves to be true only about 50% of the time, so if you're waiting for the clap of thunder, you're missing out on some exciting strokes of lightning!
Lightning causes injuries, deaths, and forest fires each year. However, some scientists reveal the positive aspects of lightning because it releases nitrogen into the atmosphere which the raindrops then deliver to earth to fertilize our soil.
When taking cover from lightning, you should:
- A. Stand under a tree for protection
- B. Seek shelter in a wooden building
- C. Get into a metal car, or lie flat on the ground
- D. Stay outside and continue your activity
Correct Answer: C
Rationale: During a thunder and lightning storm, the safest course of action is to get into a metal car or lie flat on the ground. Standing under a tree is dangerous as trees can attract lightning. Seeking shelter in a wooden building is also risky as wood is a conductor of electricity. Staying outside and continuing activities during a lightning storm is extremely dangerous and should be avoided at all costs. The metal car or lying flat on the ground provide a path of low resistance for the lightning, reducing the risk of harm.