Clay soil forms a fairly effective barrier against the movements of water. It also swells and shrinks significantly as its water content changes. Sandy soil, in contrast, allows water to move freely and does not change shape as the water content varies. In which statement is the appropriate soil selected for its intended site?
1) Sandy soil would make a good lining for a toxic waste site. 2) Clay soil would work well in a drain field. 3) Clay soil would be a good foundation for a large building. 4) Clay soil would form a good liner if a person built a pond. 5) A sandy lake bottom would prevent water from seeping out of the lake. (The answer is 4).
Do IB and AP courses matter? What is my school doesn't have IB classes - should I transfer?
Selective colleges expect students to pursue successfully the most challenging curricula offered to them. In some high schools, that is the International Baccalaureate Diploma Program. In others, it is Advanced Placement. Other schools offer a different curriculum for their most advanced students. Pursuing the most rigorous curriculum signals academic motivation; excelling in that curriculum suggests that the student is well prepared for academically strenuous college classes. As a personal anecdote: my school did not offer IB classes (only AP classes), and I had no problem with applying to colleges. A close classmate of mine got into Ivy League schools with just AP classes and honors classes, and he was totally fine as well.
ACT Math Question: In scientific notation, 670,000,000 + 700,000,000 would be:
Multiple Choice: A. 1.37 x 10^-9 B. 1.37 x 10^7 C. 1.37 x 10^8 D. 1.37 x 10^9 E. 137 x 10^15 (The correct answer is D.)