Answer the following question given this paragraph: Crystalline solids are generally classified according the nature of the forces that hold its particles together. These forces are primarily responsible for the physical properties exhibited by the bulk solids. The following sections provide descriptions of the major types of crystalline solids: ionic, metallic, covalent network, and molecular. Q: What kind of solids are generally classified by the forces that hold their particles together and include ionic, metallic, covalent network, and molecular types? Choices: - distinct solids - helium solids - flat solids - crystalline solids A:
crystalline solids
Answer the following question given this paragraph: Many transition metals and their compounds are used as catalysts. Given MnO 2, FeCl3, Pt, and Ni, which would you select for each purpose and why?. Q: Many transition metals and their compounds are used as what? Choices: - insulators - bases - sealants - catalysts A:
catalysts
Q: Answer the following question given this paragraph: Amplifier: Tim Walker; Battery: Emilian Robert Vicol. Portable amplifiers have batteries that store chemical energy . Amplifier: CC BY 2.0; Battery: Public Domain. Q: Portable amplifiers have batteries that store what type of energy? Choices: - kinetic energy - mechanical energy - carbon energy - chemical energy A:
A: chemical energy
Question: Answer the following question given this paragraph: Insight learning is learning from past experiences and reasoning. It generally involves coming up with new ways to solve problems. Insight learning generally happens quickly. An animal has a sudden flash of insight. Insight learning requires relatively great intelligence. Human beings use insight learning more than any other species. They have used it to invent the wheel to land astronauts on the moon. Q: What is the term for learning from past experiences and reasoning? Choices: - logical learning - consequence learning - experimental learning - insight learning A:
Answer: insight learning
*Question*
Answer the following question given this paragraph: Gene cloning is making an exact copy of a gene. Q: What artificial process involves making an exact copy of a gene? Choices: - material cloning - candidate cloning - ribosome cloning - gene cloning A:
**Answer**
gene cloning
Q: Answer the following question given this paragraph: All life relies on a relatively narrow range of pH, or acidity. That's because protein structure and function are very sensitive to pH. Air pollution can cause precipitation to become acidic. Nitrogen and sulfur oxides, mainly from motor vehicle exhaust and coal burning, create acids when they combine with water in the air. The acids lower the pH of precipitation, forming acid rain . If acid rain falls on the ground, it may damage soil and soil organisms. If it falls on plants, it may kill them (see Figure below ). If it falls into lakes, it lowers the pH of the water and kills aquatic organisms. Q: When the ph of precipitation is lowered because of air pollution, what results? Choices: - abnormal rain - climate change - sleet - acid rain A:
A: acid rain