Command Of Evidence Mock Tests

As part of an economics textbook: "A country's terms of trade improve when the price of its exports rises relative to the price of its imports. When terms of trade improve, the country can purchase more imports for the same quantity of exports, effectively increasing its real income. However, if the export price increase is caused by a supply shock rather than increased demand, the improvement may be temporary and could harm other sectors of the economy." What can most reasonably be concluded from the passage?

Read the following passage about language acquisition: Noam Chomsky proposed that humans are born with an innate capacity for language, which he called the Language Acquisition Device (LAD). Critics argue that children's language abilities emerge from social interaction rather than biological programming. A 2021 study by researchers at MIT and Stanford examined bilingual children aged two to four and found that both genetic markers and environmental factors significantly influenced the age at which children began speaking. Which choice best describes the relationship between the second and third sentences?

Read the following passage: "Earth's magnetic field is generated by the geodynamo effect, which occurs in the planet's outer core. The outer core consists of molten iron and nickel, and the convection currents within this liquid metal, combined with Earth's rotation, create electric currents that produce the magnetic field. Unlike Earth's solid inner core, the fluid outer core allows for continuous motion, which is essential for maintaining the magnetic field." According to the passage, what would most likely happen if the outer core were to solidify?

In this passage from a biography: "As a young girl in rural Illinois, Marie Curie excelled in mathematics and physics, despite the fact that women were largely excluded from higher education at the time. Her determination led her to attend the flying university, a clandestine institution that offered higher education to Polish women." What can be inferred about the flying university?

In this excerpt from a biology textbook: "CRISPR-Cas9 technology has revolutionized genetic engineering by allowing scientists to make precise edits to DNA sequences. Unlike earlier gene-editing tools that required extensive and costly preparation, CRISPR systems can be reprogrammed simply by changing the guide RNA sequence. This flexibility has accelerated research in fields ranging from developing disease-resistant crops to exploring potential therapies for genetic disorders." The passage implies that earlier gene-editing tools were less attractive to researchers because they: a) could not edit DNA sequences with any precision b) required significant time and financial investment to adapt c) were only applicable to plant genetics d) had been completely replaced by CRISPR before becoming widely used

Read the following passage about renewable energy: "A 2023 study by the International Renewable Energy Agency analyzed data from 50 countries and found that solar and wind power now account for the majority of new electricity-generating capacity worldwide. In developing nations, the cost of solar panels has dropped by 85% since 2010, making renewable energy the most affordable option in 83% of cases compared to fossil fuels." Which finding, if true, would most directly support the claim in the passage?

As part of a research summary: "A recent study found that students who participated in a daily mindfulness program reported lower levels of stress and anxiety. The researchers measured stress hormones in both the mindfulness group and a control group, finding significantly lower cortisol levels in the participants who practiced mindfulness." What can be concluded from the study described in the passage?

Read the following passage about the development of antibiotics: "Alexander Fleming discovered penicillin in 1928 when he noticed that a mold called Penicillium had killed bacteria in a petri dish. However, it was not until 1938 that Howard Florey and Ernst Chain developed a method to purify and mass-produce penicillin. During World War II, penicillin saved countless soldiers' lives by treating infected wounds." Which finding, if true, would most directly challenge the passage's implication about Fleming's role?