Is anyone lost in space? A total of 18 people have lost their lives either while in space or in preparation for a space mission, in four separate incidents. Given the risks involved in space flight, this number is surprisingly low. The two worst disasters both involved NASA’s space shuttle. What are the risks of […]
Which measures of center and spread would you use for this distribution?
How does gradient change discharge?
How does gradient change discharge? While gradient decreases between a stream’s headwaters and mouth, discharge increases. Gradient and discharge determine the velocity of a stream. What is a stream profile? A stream profile is a cross-section view of a stream from its headwaters to its mouth. What is the relationship between urbanization and water supply? […]
What is the moral of the story Frankenstein?
What is the moral of the story Frankenstein? One message conveyed by Frankenstein is the danger that lies with considering the negative consequences of science and technology after-the-fact, instead of before. What is the overall message of Frankenstein? Shelley’s most pressing and obvious message is that science and technology can go to far. The ending […]
What are two main sources of the sediment that rivers and streams carry?
What are two main sources of the sediment that rivers and streams carry? The two main sources of the sediment carried by the streams and rivers are from the mass movement and runoff. What is the largest river on Earth? Nile River Which is the smallest river in the world? Roe River Which country has […]
How long do atoms live for?
What is another name for an interneuron?
What is another name for an interneuron? Interneurons (also called internuncial neurons, relay neurons, association neurons, connector neurons, intermediate neurons or local circuit neurons) are neurons that connect two brain regions, i.e. not direct motor neurons or sensory neurons. What is an example of a interneuron? The nerve cells of the central nervous system are […]
Does the stomach produce mucus?
Does the stomach produce mucus? The stomach has a two-layered mucus system, composed of an inner, attached mucus and an outer, unattached, loose mucus layer, both built by the MUC5AC mucin produced by the superficial epithelium. Glands in the stomach and duodenum secrete the gel-forming mucin MUC6. What would happen if there was no mucus […]
What are the negative effects of the atmosphere?
What are the negative effects of the atmosphere? Acid rain, climate change and smog all damage the Earth surface. Contaminated water and gases seep into the earth, changing the composition of soils. That directly affects agriculture, changing crop cycles and the composition of the food we all eat. How do humans affect the atmosphere? Humans […]