input with options: Answer the following question given this paragraph: Diffusion is the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration. The difference in the concentrations of the molecules in the two areas is called the concentration gradient . Diffusion will continue until this gradient has been eliminated. Since diffusion moves materials from an area of higher concentration to the lower, it is described as moving solutes "down the concentration gradient. " The end result of diffusion is an equal concentration, or equilibrium , of molecules on both sides of the membrane. Q: What is the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration? A:
OPTIONS:
- absorption
- condensation
- secretion
- diffusion
output: diffusion

Q: Answer the following question given this paragraph: The rigid crystals of ionic compounds are brittle. They are more likely to break than bend when struck. As a result, ionic crystals tend to shatter easily. Try striking salt crystals with a hammer and you'll find that they readily break into smaller pieces. You can learn more about the properties of ionic compounds by watching the video at this URL:. Q: When struck, how are the rigid crystals of ionic compounds likely to react? A:

OPTIONS:
- shrink
- bend
- grow
- break

A: break

input: OPTIONS:
- perennials and annuals
- flowers and fruits
- deciduous and evergreen
- gymnosperms and angiosperms Now, answer this question: Answer the following question given this paragraph: The two major types of seed plants are the gymnosperms (seeds in cones) and angiosperms (seeds in ovaries of flowers). Figure below shows how the seeds of gymnosperms and angiosperms differ. Do you see the main difference between the two seeds? The angiosperm seed is surrounded by an ovary . Q: What are the two major types of seed plants called? A:
A:
output: gymnosperms and angiosperms

Answer the following question given this paragraph: Climate is the average weather of a place over many years. It includes average temperatures. It also includes average precipitation. The timing of precipitation is part of climate as well. What determines the climate of a place? Latitude is the main factor. A nearby ocean or mountain range can also play a role. Q: What term is used to describe the average weather of a place over many years? A:

OPTIONS:
- atmosphere
- landscape
- meteorology
- climate

Answer: climate

Problem: OPTIONS:
- non-harmonic bonds
- harmonic bonds
- magnetic bonds
- ionic bonds
Q: Answer the following question given this paragraph: Ionic bonds form only between metals and nonmetals. Metals "want" to give up electrons, and nonmetals "want" to gain electrons. Find sodium (Na) in Figure below . Sodium is an alkali metal in group 1. Like other group 1 elements, it has just one valence electron. If sodium loses that one electron, it will have a full outer energy level. Now find fluorine (F) in Figure below . Fluorine is a halogen in group 17. It has seven valence electrons. If fluorine gains one electron, it will have a full outer energy level. After sodium gives up its valence electron to fluorine, both atoms have a more stable arrangement of electrons. Q: What type of bonds form only between metals and nonmetals? A:
Answer: ionic bonds

Answer the following question given this paragraph: Hydrogen bonds also explain why water's boiling point (100C) is higher than the boiling points of similar substances without hydrogen bonds. Because of water's relatively high boiling point, most water exists in a liquid state on Earth. Liquid water is needed by all living organisms. Therefore, the availability of liquid water enables life to survive over much of the planet. Q: What is to blame for water's boiling point (100c) being higher than the boiling points of similar substances? A:

OPTIONS:
- electrode bonds
- molecular shape
- helium bonds
- hydrogen bonds

Answer:
hydrogen bonds