How did states try to regulate railroads? The Interstate Commerce Act of 1887 is a United States federal law that was designed to regulate the railroad industry, particularly its monopolistic practices. The Act required that railroad rates be “reasonable and just,” but did not empower the government to fix specific rates. How did the federal […]
What are three stages of demographic transition?
What are three stages of demographic transition? They are: (i) the high stationary phase marked by high fertility and mortality rates; (ii) the early expanding phase marked by high fertility and high but declining mortality; (iii) the late expanding phase with declining fertility but with mortality declining more rapidly; (iv) the low stationary phase with […]
What are common types of autoimmune diseases?
What are common types of autoimmune diseases? Examples of autoimmune diseases include: Rheumatoid arthritis. Systemic lupus erythematosus (lupus). Inflammatory bowel disease (IBD). Multiple sclerosis (MS). Type 1 diabetes mellitus. Guillain-Barre syndrome. Chronic inflammatory demyelinating polyneuropathy. Psoriasis. Can autoimmune be cured? Autoimmune disorders in general cannot be cured, but the condition can be controlled in many […]
Is the AP physics exam hard?
Is the AP physics exam hard? The exam is rather difficult since it is largely concept-based and not problem-based like the original AP Physics B which it replaced in 2014. AP Physics 1 can be used as an introductory Physics course but be aware, it has the lowest AP exam passing rate: 40.6% in 2018! […]
What are the most common driving mistakes?
What are the most common driving mistakes? Here’s a list of the 10 most common mistakes we humans make when operating an automobile. Crossing Lanes While Turning. Using Your Daylights At Night. Bad Seating Position. Riding The Brakes. Leaving Your High Beams On. Not Using Your Turn Signal. Driving Slowly In The Passing Lane. Not […]
Which light scatters most?
Which light scatters most? Violet light Why is Red scattered the least? When light enters the atmosphere, it is scattered by small air particles. The scattering of light is inversely proportional to the fourth power of its wavelength. As the red light has the highest wavelength among all the colours in the visible light, it […]
Is Kingdom Protista unicellular or multicellular?
Is Kingdom Protista unicellular or multicellular? The kingdom Protista contains the single-celled eukaryotes in contrast to the bacteria which are examples of the prokaryotic cell type. Protists are a diverse group of organisms that are either unicellular or multicellular without highly specialized tissues. Is algae a protist? Algae, singular alga, members of a group of […]
Which sphere do humans belong to?
Which sphere do humans belong to? Humans (biosphere) built a dam out of rock materials (geosphere). Water in the lake (hydrosphere) seeps into the cliff walls behind the dam, becoming groundwater (geosphere), or evaporating into the air (atmosphere). How do all 5 spheres interact? All the spheres interact with other spheres. For example, rain (hydrosphere) […]
Is pass to the left a firm rule?
How do we use sound energy?
How do we use sound energy? The simplest and most obvious use of sound energy is for hearing. Humans can hear frequencies between about 20 Hz and 20,000 Hz. Another way that we use sound waves to learn about our surroundings is SONAR (short for Sound Navigation And Ranging), which is used to map objects […]