Answer the following question given this paragraph: Q: Drip iirigation requires less water and reduces what? Choices: - moisture - bacteria - sediment - salinization A:
salinization
Answer the following question given this paragraph: Binary fission occurs when a parent cell simply splits into two daughter cells. This method is described in detail in the lesson "Cell Division. " Bacteria reproduce this way. You can see a bacterial cell reproducing by binary fission in Figure below . Q: How does bacteria reproduce? Choices: - sexual reproduction - budding - pollination - binary fission A:
binary fission
Q: Answer the following question given this paragraph: Velocity is a measure of both speed and direction of motion. Velocity is a vector, which is a measurement that includes both size and direction. Q: What is a measure of both speed and direction of motion? Choices: - distance - intensity - acceleration - velocity A:
A: velocity
Question: Answer the following question given this paragraph: Solutions of ionic compounds and melted ionic compounds conduct electricity, but solid materials do not. Q: Solutions of ionic compounds and melted ionic compounds conduct what? Choices: - radiation - sound waves - light - electricity A:
Answer: electricity
*Question*
Answer the following question given this paragraph: Figure 19.24 Coral is the foundation species of coral reef ecosystems. (credit: Jim E. Maragos, USFWS). Q: What is the foundation species of coral reef ecosystems? Choices: - anemones - crystals - molluscs - coral A:
**Answer**
coral
*Question*
Answer the following question given this paragraph: (a) Initially, the system (a copper penny and concentrated nitric acid) is at atmospheric pressure. (b) When the penny is added to the nitric acid, the volume of NO2 gas that is formed causes the piston to move upward to maintain the system at atmospheric pressure. In doing so, the system is performing work on its surroundings. The symbol E in represents the internal energy of a system, which is the sum of the kinetic energy and potential energy of all its components. It is the change in internal energy that produces heat plus work. To measure the energy changes that occur in chemical reactions, chemists usually use a related thermodynamic quantity calledenthalpy (H) (from the Greek enthalpein, meaning "to warm"). The enthalpy of a system is defined as the sum of its internal energy E plus the product of its pressure Pand volume V:. Q: To measure what changes that occur in chemical reactions, chemists usually use a related thermodynamic quantity, calledenthalpy? Choices: - ion exchange - evaporation - entropy - energy A:
**Answer**
energy