The following is a student draft. It may contain errors.

One example of scientists working to make people's lives better is through their development of underwater greenhouses, a sustainable method for producing food. One underwater greenhouse, a set of pods anchored to the seafloor just outside the coast of Italy's Liguria region, is called Nemo's Garden.
Nemo's Garden was developed in 2012 by a company called the Ocean Reef Group. Through their experiments at Nemo's Garden, the group was able to learn that plants grow faster underwater. This discovery led the scientists to conclude that underwater greenhouses could be one way to ensure that countries experiencing drought or other conditions that impact farming would still have access to healthy food.
The pods found in Nemo's garden look similar to something one would see in a science fiction movie. The pods are various sizes and float at different depths, which keeps the plants safe. The dome at the top of each pod allows sunlight to enter, which keeps the plants warm despite the fact that the surrounding water is much cooler.
The crops in Nemo's Garden must remain hydrated to grow. Additionally, the plants must be maintained by a special group of divers and monitored twenty-four hours a day through the use of cameras and sensors.
While underwater greenhouses are not without problems—mainly due to leaking and decay—scientists are hopeful about their potential future uses.

Which sentence best introduces the topic?

A. Scientists oftentimes struggle to find new ways to make people's lives better.
B. Scientists enjoy developing new technologies, even though it takes time.
C. Scientists are constantly looking for ways to improve people's lives.
D. Scientists do not have all the answers, but they try to.

Read the passage, then answer the question that follows. no one could have seen it at the time, but the invention of beet sugar was not just a challenge to cane. it was a hint—just a glimpse, like a twist that comes about two thirds of the way through a movie—that the end of the age of sugar was in sight. for beet sugar showed that in order to create that perfect sweetness you did not need slaves, you did not need plantations, in fact you did not even need cane. beet sugar was a foreshadowing of what we have today: the age of science, in which sweetness is a product of chemistry, not whips. in 1854 only 11 percent of world sugar production came from beets. by 1899 the percentage had risen to about 65 percent. and beet sugar was just the first challenge to cane. by 1879 chemists discovered saccharine—a laboratory-created substance that is several hundred times sweeter than natural sugar. today the sweeteners used in the foods you eat may come from corn (high-fructose corn syrup), from fruit (fructose), or directly from the lab (for example, aspartame, invented in 1965, or sucralose—splenda—created in 1976). brazil is the land that imported more africans than any other to work on sugar plantations, and in brazil the soil is still perfect for sugar. cane grows in brazil today, but not always for sugar. instead, cane is often used to create ethanol, much as corn farmers in america now convert their harvest into fuel. –sugar changed the world, marc aronson and marina budhos how does this passage support the claim that sugar was tied to the struggle for freedom? it shows that the invention of beet sugar created competition for cane sugar. it shows that technology had a role in changing how we sweeten our foods. it shows that the beet sugar trade provided jobs for formerly enslaved workers. it shows that sweeteners did not need to be the product of sugar plantations and slavery.

Which phrase refers to the contrast between what is expected to happen and what actually does happen? situational ironydramatic ironyverbal ironyconflict and resolution

How did magellan's discovery of what is now considered the philippines directly affect the native populations that were living there? a. they disappeared deep into the new land and started another settlement b. they became aggressive after having a new religious view upon them c. they became restless to travel the world on the ships they encountered d. they became angered over losing their lands' raw goods like fruits and spices