Q: Supercontinents have formed at least how many times in earth history? Read this paragraph and choose the correct option from the provided answers: The first continents were small but they grew over time. Supercontinents have formed at least five times in Earth history. Choices: - twenty - nine - two - five A:
five

Q: What part of the cell does cellular respiration occur? Read this paragraph and choose the correct option from the provided answers: Cellular respiration occurs in the mitochondria. Figure 20.13 "Respiration" shows the mitochondrion's two membranes: outer andinner. The inner membrane is extensively folded into a series of internal ridges calledcristae. Thus there are two compartments in mitochondria: the intermembrane space, which lies between the membranes, and the matrix, which lies inside the inner membrane. Choices: - glucose - proton - nuclei - mitochondria A:
mitochondria

Q: Q: What do animals store with the help of saturated fatty acids? Read this paragraph and choose the correct option from the provided answers: In saturated fatty acids , carbon atoms are bonded to as many hydrogen atoms as possible. This causes the molecules to form straight chains, as shown in Figure below . The straight chains can be packed together very tightly, allowing them to store energy in a compact form. This explains why saturated fatty acids are solids at room temperature. Animals use saturated fatty acids to store energy. Choices: - oxygen - sugar - protein - energy A:
A: energy

Question: Q: Natural gas burns cleaner and produces less carbon dioxide than fuels of what type? Read this paragraph and choose the correct option from the provided answers: Natural gas burns cleaner than other fossil fuels. As a result, it causes less air pollution. It also produces less carbon dioxide than the other fossil fuels. Because it burns cleaner than other fossil fuels, natural gas has a good reputation. Still, natural gas does emit pollutants. Choices: - renewable fuels - solar energy - biofuels - fossil fuels A:
Answer: fossil fuels

*Question*
Q: Did darwin believe in punctuated equilibrium or gradualism? Read this paragraph and choose the correct option from the provided answers: Darwin thought that evolution occurs gradually. This model of evolution is called gradualism. The fossil record better supports the model of punctuated equilibrium. In this model, long periods of little change are interrupted by bursts of rapid change. Choices: - it depended - neither - punctuated equilibrium - gradualism A:
**Answer**
gradualism

Q: Q: What branch of science deals with the effects people have on the environment? Read this paragraph and choose the correct option from the provided answers: Environmental science deals with the effects people have on the environment. Choices: - physical science - cultural science - ecological science - environmental science A:
A: environmental science