Answer the following question given this paragraph: The major cause of outdoor air pollution is the burning of fossil fuels. Q: The major cause of outdoor air pollution is the burning of? Choices: - trees - trash - charcoal briquettes - fossil fuels A:
fossil fuels
Answer the following question given this paragraph: Another obvious change that occurs during puberty is rapid growth. This is called the adolescent growth spurt . In boys, it is controlled by testosterone. The rate of growth usually starts to increase relatively early in puberty. At its peak rate, growth in height is about 10 centimeters (almost 4 inches) per year in the average male. Growth generally remains rapid for several years. Growth and development of muscles occur toward the end of the growth spurt in height. Muscles may continue to develop and gain strength after growth in height is finished. Q: What drives puberty in male humans? Choices: - bloodstream - estrogen - methane - testosterone A:
testosterone
Q: Answer the following question given this paragraph: Q: What is the process that ventilates lungs called? Choices: - photosynthesis - reproduction - perspiration - breathing A:
A: breathing
Question: Answer the following question given this paragraph: Most sedimentary rocks form from sediments. Sediments are small pieces of other rocks, like pebbles, sand, silt, and clay. Sedimentary rocks may include fossils. Fossils are materials left behind by once-living organisms. Fossils can be pieces of the organism, like bones. They can also be traces of the organism, like footprints. Q: What is the term for something left behind by once-living organisms? Choices: - decay - waste matter - deposits - fossils A:
Answer: fossils
*Question*
Answer the following question given this paragraph: The pond on the left is covered with algae because there is too much nitrogen in the water. The red-shaded area in the map on the right is a dead zone in the Gulf of Mexico. It's called the hypoxic ("low oxygen") zone in the figure. Q: What does hypoxic mean? Choices: - standard oxygen level - Oxygen rate - higher oxygen - low oxygen A:
**Answer**
low oxygen
Answer the following question given this paragraph: Q: What kind of enzyme is phosphofructokinase? Choices: - covalent - intracellular - orthosteric - allosteric A:
allosteric