Answer the following question given this paragraph: The female reproductive organs include the ovaries, fallopian tubes, uterus, and vagina. Q: The female reproductive organs include the ovaries, fallopian tubes, uterus, and what? A:

OPTIONS:
- intestines
- womb
- bladder
- vagina

Answer: vagina

Answer the following question given this paragraph: Polarization leads to the buildup of electric charges on objects. This buildup of charges is known as static electricity . Once an object becomes charged, it is likely to remain charged until another object touches it or at least comes very close to it. That's because electric charge cannot travel easily through air, especially if the air is dry. Q: What leads to the buildup of electric charges on objects? A:

OPTIONS:
- movement
- gravity
- rotation
- polarization

Answer: polarization

Answer the following question given this paragraph: The size of an ocean wave depends on how fast, over how great a distance, and how long the wind blows. The greater each of these factors is, the bigger a wave will be. Some of the biggest waves occur with hurricanes. A hurricane is a storm that forms over the ocean. Its winds may blow more than 150 miles per hour! The winds also travel over long distances and may last for many days. Q: Some of the biggest waves occur with what type of storm that forms over the ocean and brings high winds? A:

OPTIONS:
- tropical depression
- tsunami
- tropical storm
- hurricane

Answer: hurricane

Answer the following question given this paragraph: Sulfur enters the ocean in runoff from land, from atmospheric fallout, and from underwater geothermal vents. Some ecosystems rely on chemoautotrophs using sulfur as a biological energy source. This sulfur then supports marine ecosystems in the form of sulfates. Human activities have played a major role in altering the balance of the global sulfur cycle. The burning of large quantities of fossil fuels, especially from coal, releases larger amounts of hydrogen sulfide gas into the atmosphere. As rain falls through this gas, it creates the phenomenon known as acid rain, which damages the natural environment by lowering the pH of lakes, thus killing many of the resident plants and animals. Acid rain is corrosive rain caused by rainwater falling to the ground through sulfur dioxide gas, turning it into weak sulfuric acid, which causes damage to aquatic ecosystems. Acid rain also affects the man-made environment through the chemical degradation of buildings. For example, many marble monuments, such as the Lincoln Memorial in Washington, DC, have suffered significant damage from acid rain over the years. These examples show the wide-ranging effects of human activities on our environment and the challenges that remain for our future. Q: Acid rain is corrosive rain caused by rainwater falling to the ground through which gas? A:

OPTIONS:
- sulfide dioxide
- carbon dioxide
- essential dioxide
- sulfur dioxide

Answer:
sulfur dioxide