Q: Answer the following question given this paragraph: Floods are a source of nutrients on a floodplain. Q: What are floods a source of on a floodplain? A:

OPTIONS:
- salt
- acids
- minerals
- nutrients

A: nutrients

input: OPTIONS:
- the solution
- electricity
- the base
- acid Now, answer this question: Answer the following question given this paragraph: The strength of an acid depends on the concentration of hydrogen ions it produces when dissolved in water. A stronger acid produces a greater concentration of ions than a weaker acid. For example, when hydrogen chloride is added to water, all of it breaks down into H + and Cl - ions. Therefore, it is a strong acid. On the other hand, only about 1 percent of acetic acid breaks down into ions, so it is a weak acid. Q: The strength of what depends on the concentration of hydrogen ions it produces when dissolved in water? A:
A:
output: acid

Answer the following question given this paragraph: The crystal structure of ionic compounds is strong and rigid. It takes a lot of energy to break all those ionic bonds. As a result, ionic compounds are solids with high melting and boiling points. You can see the melting and boiling points of several different ionic compounds in the Table below . To appreciate how high they are, consider that the melting and boiling points of water, which is not an ionic compound, are 0C and 100C, respectively. Q: In celsius, what is the boiling point of water? A:

OPTIONS:
- zero degrees
- two hundred twelve degrees
- ninety eight degrees
- one hundred degrees

Answer: one hundred degrees

Problem: OPTIONS:
- Arctic circle
- Antarctic ridge
- Pacific rim
- mid-atlantic ridge
Q: Answer the following question given this paragraph: Most mid-ocean ridges are located deep below the sea. The island of Iceland sits right on the Mid-Atlantic ridge ( Figure below ). Q: On which ridge does iceland sit? A:
Answer: mid-atlantic ridge

Problem:OPTIONS:
- acidic
- covalent
- ionic
- peptide

Answer the following question given this paragraph: Amino acid units in a protein are connected by peptide bonds. What is another name for the functional group linking the amino acids?. Q: Amino acid units in a protein are connected by what bonds? A:
****
A: peptide

Problem:OPTIONS:
- constant aberration
- carbon aberration
- angular aberration
- spherical aberration

Answer the following question given this paragraph: Figure 26.30 Spherical aberration is caused by rays focusing at different distances from the lens. Q: What is it called when rays focus at different distances from the lens? A:
****
A:
spherical aberration