Answer the following question given this paragraph: Q: What type of disturbance do even dominant plants depend on in many biomes? Choices: - mass extinction - radiation - seismic force - periodic A:
periodic
Answer the following question given this paragraph: A given liquid will evaporate more quickly when it is heated. This is because the heating process results in a greater fraction of the liquid's molecules having the necessary kinetic energy to escape the surface of the liquid. The Figure below shows the kinetic energy distribution of liquid molecules at two temperatures. The numbers of molecules that have the required kinetic energy to evaporate are shown in the shaded area under the curve at the right. The higher temperature liquid (T 2 ) has more molecules that are capable of escaping into the vapor phase than the lower temperature liquid (T 1 ). Q: Because heating results in a greater fraction of molecules having the necessary kinetic energy to escape the surface of the liquid, what occurs more quickly when liquid is heated? Choices: - oxidation - expansion - absorption - evaporation A:
evaporation
Q: Answer the following question given this paragraph: Tides are daily changes in the level of ocean water. They occur all around the globe. High tides occur when the water reaches its highest level in a day. Low tides occur when the water reaches its lowest level in a day. Tides keep cycling from high to low and back again. In most places the water level rises and falls twice a day. So there are two high tides and two low tides approximately every 24 hours. Q: What do you call the daily changes in the level of ocean water? Choices: - waves - shores - currents - tides A:
A: tides
Question: Answer the following question given this paragraph: Q: What debated therapy offers a potential method for replacing neurons lost to injury or disease? Choices: - cell production therapy - stem cell reduction - cell duplication - stem cell therapy A:
Answer: stem cell therapy
*Question*
Answer the following question given this paragraph: For machines that increase force including ramps, doorknobs, and nutcrackers the output force is greater than the input force. Therefore, the mechanical advantage is greater than 1. Q: In machines that increase force, such as ramps and doorknobs and nutcrackers, what is the relation between output and input force? Choices: - drop is greater - output is smaller - input is greater - output is greater A:
**Answer**
output is greater
*Question*
Answer the following question given this paragraph: Carbon is one of the most common elements found in living organisms. Chains of carbon molecules form the backbones of many organic molecules, such as carbohydrates, proteins, and lipids. Carbon is constantly cycling between living organisms and the atmosphere ( Figure below ). The cycling of carbon occurs through the carbon cycle . Q: Which common element is the most found in living organisms? Choices: - hydrogen - oxygen - monoxide - carbon A:
**Answer**
carbon