Answer the following question given this paragraph: Groundwater dissolves minerals and rocks into ions. Groundwater deposits those ions into different types of structures. Limestone caves are the best place to see these structures. Water erodes the cave and it has deposits structures like stalactites and stalagmites. The cave pictured here is Carlsbad Caverns in New Mexico. Q: Groundwater dissolves minerals and rocks into what? A:
OPTIONS:
- gravel
- sand
- grit
- ions
ions

Answer the following question given this paragraph: When energy is released in a chemical reaction or process, that energy is expressed as a negative number. Figure below shows electron affinities in kJ/mol for the main group elements. Q: How is energy expressed when it is released in a chemical reaction? A:
OPTIONS:
- as an equation
- as a percentage
- as a positive number
- as negative number

Answer: as negative number

Question: Answer the following question given this paragraph: Birds need a light-weight body in order to stay aloft. Even so, flying is hard work, and flight muscles need a constant supply of oxygen- and nutrient-rich blood. The organ systems of birds are adapted to meet these needs. Q: Why do birds need a light-weight body? A:
OPTIONS:
- for cooling
- water flotation
- food shortages
- to stay aloft
Answer: to stay aloft

input with options: Answer the following question given this paragraph: When matter reacts, there can be mass that comes from nowhere and is unaccounted for. Q: When matter reacts, there can be what that comes from nowhere and is unaccounted for? A:
OPTIONS:
- concentrations
- combustions
- bonds
- mass
output: mass

Q: Answer the following question given this paragraph: Electrons are negatively charged particles in atoms. Moving electrons have a form of kinetic energy called electrical energy . If you've ever experienced an electric outage, then you know how hard it is to get by without electrical energy. Most of the electrical energy we use is produced by power plants and arrives in our homes through wires. Two other sources of electrical energy are pictured in Figure below . Q: Moving electrons have a form of kinetic energy called what? A:

OPTIONS:
- potential energy
- electromagnetism
- deformed energy
- electrical energy

A: electrical energy

Answer the following question given this paragraph: There are several other examples of objects that increase their rate of spin because something reduced their moment of inertia. Tornadoes are one example. Storm systems that create tornadoes are slowly rotating. When the radius of rotation narrows, even in a local region, angular velocity increases, sometimes to the furious level of a tornado. Earth is another example. Our planet was born from a huge cloud of gas and dust, the rotation of which came from turbulence in an even larger cloud. Gravitational forces caused the cloud to contract, and the rotation rate increased as a result. (See Figure 10.24. Q: What is said about the speed of rotation in systems that create tornadoes? A:
OPTIONS:
- it is magnetic
- it is unchanged
- it is fast
- it is slow
it is slow