Please answer this: Background: Marine pollution is a generic term for the entry into the ocean of potentially hazardous chemicals or particles. The biggest culprits are rivers and with them many agriculture fertilizer chemicals as well as livestock and human waste. The excess of oxygen-depleting chemicals leads to hypoxia and the creation of a dead zone.Marine debris, which is also known as marine litter, describes human-created waste floating in a body of water. Oceanic debris tends to accumulate at the center of gyres and coastlines, frequently washing aground where it is known as beach litter. Paragraph: Two countries had big rivers discharging in the same ocean. Finland was very aware of environmental pollution and acted accordingly, while Russian practiced conventional agriculture and used fertilizers. Given the paragraph above, please answer correctly the following question: Which country caused more hazardous chemicals to reach into the ocean?
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Answer: Russia

Please answer this: Background: One of the main causes of extinction is introduction of exotic species into an environment. These exotic and new species can also be called invasive species or non-native species . These non-native species, being new to an area, may not have natural predators in the new habitat, which allows their populations to easily adapt and grow. Invasive species out-compete the native species for resources. Sometimes invasive species are so successful at living in a certain habitat that the native species go extinct ( Figure below ). Paragraph: India decided to introduce several exotic species into their environment, while Singapore was very protective of its native species. India encountered big problems with extinction during the following years. Given the paragraph above, please answer correctly the following question: Which country had fewer species go extinct?
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Answer: Singapore

Please answer this: Background: Liquid water is a fluid. The hydrogen bonds in liquid water constantly break and reform as the water molecules tumble past one another. As water cools, its molecular motion slows and the molecules move gradually closer to one another. The density of any liquid increases as its temperature decreases. For most liquids, this continues as the liquid freezes and the solid state is denser than the liquid state. However, water behaves differently. It actually reaches its highest density at about 4C. Paragraph: Helen is working in the kitchen when she goes to the freezer to get some ice cubes. There is only one ice cube left so she takes it out and sets it in the glass on the table. She then refills the ice cube tray with water and sticks it back in the freezer. Given the paragraph above, please answer correctly the following question: Are the molecules in the water moving closer together or farther apart?
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Answer:
closer together