Q: Answer the following question given this paragraph: A suspension is a heterogeneous mixture in which some of the particles settle out of the mixture upon standing. The particles in a suspension are far larger than those of a solution and thus gravity is able to pull them down out of the dispersion medium (water). The typical diameter for the dispersed particles (the sand) of a suspension is about 1000 times greater than those of a solution (less than approximately two nanometers for particles in solution, compared to greater than 1000 nanometers for particles in suspension). Unlike in a solution, the dispersed particles can be separated from the dispersion medium by filtering. Suspensions are heterogeneous because at least two different substances in the mixture can be identified. Q: What do you call a mixture in which some particles settle out of it when it is left standing? A:

OPTIONS:
- emulsion
- alloy
- homogenous
- suspension

A: suspension

input: OPTIONS:
- food
- air
- habitat
- water Now, answer this question: Answer the following question given this paragraph: Each organism has the ability to survive in a specific environment. Dry desert environments are difficult to live in. Desert plants have special stems and leaves to conserve water. Animals have other ways to live in the desert. The Namib Desert receives only 1.5 inches of rainfall each year. The Namib Desert beetle lives there. How do the beetles get enough water to survive? Early morning fog deposits water droplets. The droplets collect on a beetle's wings and back. The beetle tilts its rear end up. When the droplet is heavy enough, it slides forward. It lands in the beetle's mouth. There are many other environments that need unique approaches for survival ( Figure below ). Q: Desert plants have special stems and leaves to conserve what? A:
A:
output: water

Answer the following question given this paragraph: Structure of a Typical Leaf Each leaf typically has a leaf blade called the lamina, which is also the widest part of the leaf. Some leaves are attached to the plant stem by a petiole. Leaves that do not have a petiole and are directly attached to the plant stem are called sessile leaves. Small green appendages usually found at the base of the petiole are known as stipules. Most leaves have a midrib, which travels the length of the leaf and branches to each side to produce veins of vascular tissue. The edge of the leaf is called the margin. Figure 30.21 shows the structure of a typical eudicot leaf. Q: Some leaves are attached to the plant stem by a petiole. leaves that do not have a petiole and are directly attached to the plant stem are called this? A:

OPTIONS:
- sheath leaves
- globular leaves
- transverse leaves
- sessile leaves

Answer: sessile leaves

Problem: OPTIONS:
- staggered line
- curved line
- fragmented line
- straight line
Q: Answer the following question given this paragraph: The direction of the force of gravity is in a straight line between two objects. It is always attractive. Q: The direction of the force of gravity is in what direction? A:
Answer: straight line

Problem:OPTIONS:
- Physics Analysis
- Chemical kinetics
- Archie's law
- thermodynamics

Answer the following question given this paragraph: Chemical reactions follow the laws of thermodynamics. The First Law of Thermodynamics states that energy can be changed from one form to another, but it cannot be created or destroyed. This law is also known as the Law of Conservation of Energy. The Second Law of Thermodynamics states the energy available after a chemical reaction is always less than that at the beginning of a reaction. This is also commonly referred to as entropy. Entropy can be described as the degree of disorder in a system . That is, as energy is transferred from one form to another, some of the energy is lost as heat, and the amount of available energy decreases. As the energy decreases, the disorder in the system increases, and, by definition, the entropy increases. Ice melting provides an example in which entropy increases. Entropy essentially is a measure of the tendency of a process, such as a chemical reaction, to proceed in a particular direction. Q: Chemical reactions follow which laws? A:
****
A: thermodynamics

Problem:OPTIONS:
- mineral reactions
- consumption reactions
- physical reactions
- chemical reactions

Answer the following question given this paragraph: A compound is a unique substance that forms when two or more elements combine chemically. Compounds form as a result of chemical reactions. The elements in compounds are held together by chemical bonds. A chemical bond is a force of attraction between atoms or ions that share or transfer valence electrons. For a video introduction to compounds, go to this URL: http://www. youtube. com/watch?v=-HjMoTthEZ0 . Q: What type of reactions form compounds? A:
****
A:
chemical reactions