input: OPTIONS:
- nitrogen
- sulfur
- carbon monoxide
- carbon dioxide Now, answer this question: Answer the following question given this paragraph: Carbon dioxide is the main greenhouse gas causing global warming. There are several possible ways to reduce carbon dioxide emissions. They include cap-and-trade systems, carbon taxes, and carbon sequestration. Q: What is the main greenhouse gas causing global warming? A:
A:
output: carbon dioxide

Answer the following question given this paragraph: Figure 4.11 Metabolic pathways are a series of reactions catalyzed by multiple enzymes. Feedback inhibition, where the end product of the pathway inhibits an upstream process, is an important regulatory mechanism in cells. Q: Metabolic pathways are a series of reactions catalyzed by multiple what? A:

OPTIONS:
- hormones
- vitamins
- particles
- enzymes

Answer: enzymes

Problem: OPTIONS:
- necessitated diffusion
- exposed diffusion
- Osmosis
- facilitated diffusion
Q: Answer the following question given this paragraph: What happens if a substance needs assistance to move across or through the plasma membrane? Facilitated diffusion is the diffusion of solutes through transport proteins in the plasma membrane. Facilitated diffusion is a type of passive transport. Even though facilitated diffusion involves transport proteins, it is still passive transport because the solute is moving down the concentration gradient. Q: What do you call the diffusion of solutes through transport proteins in the plasma membrane? A:
Answer: facilitated diffusion

Problem:OPTIONS:
- expansion
- drought
- rains
- flooding

Answer the following question given this paragraph: Heavily vegetated lands are less likely to experience flooding. Plants slow down water as it runs over the land, giving it time to enter the ground. If the ground is too wet to absorb more water, plants still slow the water's passage. Slower water keeps all the water from entering the stream at once. Wetlands play a key role in minimizing the impacts of floods. Wetlands act as a buffer between land and high water levels. Flooding is often more severe in areas that have been recently logged. Q: Heavily vegetated lands are less likely to experience what? A:
****
A: flooding

Answer the following question given this paragraph: The transmission of nerve impulses between neurons is like the passing of a baton between runners in a relay race. After the first runner races, she passes the baton to the second runner. Then the second runner takes over. Instead of a baton, a neuron passes neurotransmitters to the next neuron. Q: Like a runner passing a baton, the transmission of nerve impulses between neurons depends on what? A:
OPTIONS:
- enzymes
- axons
- receptors
- neurotransmitters
neurotransmitters

Answer the following question given this paragraph: Trailing zeros, which are zeros at the end of a number, are significant only if the number has a decimal point. Thus, in 1,500, the two trailing zeros are not. Q: The zeros at the end of a number are known as what? A:
OPTIONS:
- rest zeros
- edge zeros
- remaining zeros
- trailing zeros

Answer:
trailing zeros