How does the jet stream affect the weather where you live? How Do Jet Streams Affect Weather? The fast-moving air currents in a jet stream can transport weather systems across the United States, affecting temperature and precipitation. However, if a weather system is far away from a jet stream, it might stay in one place, […]
Do we need oxidants?
Do we need oxidants? Oxidation can damage vital molecules in our cells, including DNA and proteins, which are responsible for many body processes. Molecules such as DNA are needed for cells to function properly, so if too many are damaged, the cell can malfunction or die. This is why antioxidants are important. Why are oxidants […]
What are some signs that tell you are fatigued?
What are some signs that tell you are fatigued? The signs of tiredness include: yawning. sore or heavy eyes. slower reaction times. finding you’re daydreaming and not concentrating on your driving. driving speed creeps up or down. impatience. impaired driving performance such as poor gear changes. stiffness and cramps. What are two ways we can […]
How many points are sustainable sites?
How many points are sustainable sites? SITES certification is based on a point system: the number of points that a project earns determines the certification level it receives….SITES Rating System. Certification Level Points SITES Certified 70-84 points earned SITES Silver 85-99 points earned SITES Gold 100-134 points earned What is meant by sustainable sites? The […]
What is another name for non-renewable resources?
What is another name for non-renewable resources? A non-renewable resource (also called a finite resource) is a natural resource that cannot be readily replaced by natural means at a pace quick enough to keep up with consumption. An example is carbon-based fossil fuel. The original organic matter, with the aid of heat and pressure, becomes […]
Who was the first dog on earth?
Who was the first dog on earth? Bonn-Oberkassel dog Who first brought dogs to America? Origins. The Earliest evidence for dogs in the Americas can be found in Danger Cave, Utah, a site dated between 9,000 and 10,000 years BP (Before Present) Dogs descended from Eurasian Grey Wolves and were brought to the Americas by […]
Is radioactive decay bad?
Is radioactive decay bad? Radiation can either kill cells or damage the DNA within them, which damages their ability to reproduce and can eventually lead to cancer. When radiation is present, high energy particles pass through your body. These can collide with atoms in your body and disrupt atomic structure. What is a decay constant […]
What is the effect of HCl on the pH of water?
What is the effect of HCl on the pH of water? A molecule of hydrochloric acid, for example, is composed of a hydrogen atom and a chlorine atom. When these molecules dissolve into water, they separate into a positively charged hydrogen ion and a negatively charged chlorine ion. This leads to an increased concentration of […]
Why is it important to exercise your cardiovascular and cardiorespiratory systems?
Why is it important to exercise your cardiovascular and cardiorespiratory systems? Improving cardiovascular fitness can reduce your risk of developing heart disease by increasing the efficiency of your heart, lungs, and blood vessels. The easier it is to pump blood through your body, the less taxing it is on your heart. How can you improve […]
What happens to kinetic energy when velocity decreases?
What happens to kinetic energy when velocity decreases? Decreases in mass cause decreases in kinetic energy due to the aforementioned positive relationship between the two. In the case of a decrease in mass and velocity, kinetic energy must decrease because both of the determining factors decreased. Does kinetic energy increase velocity? It turns out that […]