What 4 Things protect the brain? The brain is protected by the skull (cranium), cerebrospinal fluid and 3 protective membranes (Meninges). How is brain protected inside a human body? The brain is protected by the bones of the skull and by a covering of three thin membranes called meninges. The brain is also cushioned and […]
What are the two main categories of matter?
What are the two main categories of matter? Classifying Matter Matter can be classified into several categories. Two broad categories are mixtures and pure substances. A pure substance has a constant composition. What can elements and compounds have in common? On first glance, elements and compounds might appear different, yet they share many similarities, like […]
What is peak value of AC?
What is peak value of AC? Definition: The maximum value attained by an alternating quantity during one cycle is called its Peak value. It is also known as the maximum value or amplitude or crest value. The peak values of alternating voltage and current is represented by Em and Im respectively. … What is the […]
How do you know if you have a viral infection?
What are 3 types of graphs used in science?
What are 3 types of graphs used in science? Using Graphs in Science Three commonly used types of graphs are bar graphs, circle graphs, and line graphs. Each type of graph is suitable for showing a different type of data. What are 5 types of graphs? Popular graph types include line graphs, bar graphs, pie […]
Why you should not sleep with your cell phone at night?
Why you should not sleep with your cell phone at night? The blue light from the screen suppresses melatonin The blue light that your smart phone emits is not only bad for your vision, but it’s bad for your brain too. Dr. Walia says that research has found a correlation between suppressed levels of melatonin […]
What are the factors of good health?
What are the factors of good health? So just what are the most important factors for establishing optimum health. Studies indicate that the following five factors make the biggest difference in overall health and wellness: 1) diet; 2) rest; 3) exercise; 4) posture; and 5) avoiding the use of alcohol, drugs and tobacco. What are […]
Are pencils magnetic?
Are pencils magnetic? Pencils are commonly made from non-magnetic materials; the shaft is usually made of wood or wood-like substitutes, with non-metallic paint, the core (commonly called the lead) is – despite the name – made from powdered graphite with a clay binder; no metal whatsoever, the eraser is made of rubber or plastic (if […]
Why do birds sunbathe with their beaks open?
Why do birds sunbathe with their beaks open? The ‘preen-oil’ that this gland produces helps to keep the feathers flexible and hygienic. It has been suggested that the sun affects the preen-oil in the feathers in some beneficial manner, or that it helps to synthesize the Vitamin D from the preen-oil. This preen-oil also aids […]
What is the highest compression ratio for 91 octane?
What is the highest compression ratio for 91 octane? about 10 to 1 Does higher compression increase horsepower? The generally accepted gauge for adding compression is that one full point of compression can add between 3 to 4 percent power. So, if an engine is making 50 horsepower and we add a full point of […]