Q: Background: Scientists think that the earliest flowers attracted insects and other animals, which spread pollen from flower to flower. This greatly increased the efficiency of fertilization over wind-spread pollen, which might or might not actually land on another flower. To take better advantage of this "animal labor," plants evolved traits such as brightly colored petals to attract pollinators. In exchange for pollination, flowers gave the pollinators nectar. Paragraph: Joy had a field full of flowering plants , that he used for medicinal and honey making purposes. Her friend Jill also had a piece of land where she cultivated plants that fertilize over wind spread pollen. Given the paragraph above, please answer correctly the following question: Which friend had a field with nectar producing flowers?
A: Joy

Q: Background: Air pollution is harmful to human beings and other living things. About 22 million people die from air pollution each year. Breathing polluted air increases the risk of developing lung diseases such as asthma and lung cancer. Breathing bad air also increases the chances of dying from other diseases. Children are most likely to be affected by air pollution. That's because their lungs are still developing and growing. Children also take in more air for their size than adults do. Some air pollutants damage the environment as well as the health of living things. The type of damage depends on the pollutant. Air pollution can also harm the environment. Paragraph: Two sister cities were part of an air pollution study. While Prague had big air pollution problems, Belfast was eco-friendly and its inhabitants were healthy. Given the paragraph above, please answer correctly the following question: Which city had more people with an increased chance of developing lung disease?
A: Prague

Q: Background: Millions of people in the world jog for exercise. For the most part, jogging can be a healthy way to stay fit. However, problems can also develop for those who jog in the heat. Excessive sweating can lead to electrolyte loss that could be life-threatening. Early symptoms of electrolyte deficiency can include nausea, fatugue, and dizziness. If not treated, individuals can experience muscle weakness and increased heart rate (which could lead to a heart attack). Many sports drinks can be consumed to restore electrolytes quickly in the body. Paragraph: The Jones family went jogging last Saturday. The weather was great for running, a bit chilly. The Brown family went jogging on Sunday and the weather was hot and humid, so it was tough for them, plus they forgot their Gatorade at home. Given the paragraph above, please answer correctly the following question: Which family experienced an increased heart rate as a result of electrolyte deficiency?
A: Brown

Q: Background: Sand mining is a direct cause of erosion, and impacts the local wildlife.[2] Various animals depend on sandy beaches for nesting clutches, and mining has led to the near extinction of gharials (a species of crocodile) in India. Disturbance of underwater and coastal sand causes turbidity in the water, which is harmful for organisms like coral that need sunlight. It can also destroy fisheries, financially harming their operators. Removal of physical coastal barriers, such as dunes, sometimes leads to flooding of beachside communities, and the destruction of picturesque beaches causes tourism to dissipate. Sand mining is regulated by law in many places, but is often done illegally.[3] Globally, it is a $70 billion industry, with sand selling at up to $90 per cubic yard.[4] Paragraph: The island of Utopia is a popular tourist destination with its great sandy beaches. Two of the most popular beaches are beach A and beach B. Both beaches also have large wildlife sanctuaries where rare dolphins can be seen. There are some fisheries in both beaches too. This year the government of Utopia is looking for more sources to increase their revenue. They decided to allow sand mining in beach A next year, and earn some extra revenue. Given the paragraph above, please answer correctly the following question: Which beach's wildlife sactuary would suffer next year, beach A or beach B?
A:
beach A