What is the study of rocks and soil? Geology is the study of the nonliving things that the Earth is made of. Geology is the study of rocks in the Earth’s crust. People who study geology are called geologists. Some geologists study minerals and the useful substances the rocks contain such as ores and fossil […]
Is magnitude positive or negative?
Is magnitude positive or negative? Answer: Magnitude cannot be negative. It is the length of the vector which does not have a direction (positive or negative). In the formula, the values inside the summation are squared, which makes them positive. What does the magnitude of a number mean? The size of something. The magnitude of […]
What are the two categories of second line defenses?
What are the two categories of second line defenses? 13.2: Second Line Defenses: Cells and Fluids Neutrophils (PMNs) Eosinophils. Basophils. Mast Cells. Is the inflammatory response the second line of defense? The second line of defense attacks pathogens that manage to enter the body. The second line of defense includes the inflammatory response and phagocytosis […]
Do electromagnetic waves carry charge?
Do electromagnetic waves carry charge? Electromagnetic waves are generated from charges and currents, but the former aren’t associated with the latter. There is no electric charge “in” electromagnetic waves. What kind of waves require a medium to travel? Mechanical waves require a medium in order to transport their energy from one location to another. A […]
Can you drink without a pancreas?
Can you drink without a pancreas? Removing the pancreas can also reduce the body’s ability to absorb nutrients from food. Without artificial insulin injections and digestive enzymes, a person without a pancreas cannot survive. Are bananas good for the pancreas? Banana nutrition Bananas are one of the most popular healthy snacking options to eat while […]
What are the hazards for excavation?
What are the hazards for excavation? 1. Pit Excavation up to 3m Type of hazard Effects of hazard Falling into pit Personal injury Earth collapse Suffocation /breathlessness, Buried Contact with buried electric cable, Gas / Oil Pipelines Electrocution, and Explosion What are the major types of caught in and caught between hazards in construction? “Caught […]
Will all combinations of metal and nonmetal?
Will all combinations of metal and nonmetal? No. not all metal-nonmetal combinations will result in an ionic bond. Only those with electronegativity difference of more than 1.9 will result to an ionic bond. Why is AlCl3 a covalent bond? Alcl3 is a covalent compound and not ionic compound. Because the Al atom has higher polarizing […]
How does the temperature of an object influence the radiation it emits?
How does the temperature of an object influence the radiation it emits? The temperature of an object influences the radiation when the higher the objects temperature, the shorter the wavelengths of emitted radiation. The earth’s surface becomes colder and colder because the earth atmosphere absorbs and emits infrared radiation. What is the radiation effect how […]
What history does the presence of metamorphic rocks reveal?
What history does the presence of metamorphic rocks reveal? What history does the presence of most metamorphic rocks reveal? It reveals that the rock has undergone metamorphism at a shallow depth and have been transformed due to heating by igneous masses through contact metamorphism. How do you identify Hornfels? Under a microscope the structure of […]
How much radiation emits from a phone?
How much radiation emits from a phone? The numbers refer to the rate of radiofrequency energy your body absorbs from the phone. The lower the number, the lower the radiation exposure. Most phones on the market fall between 0.35 and 1.59 watts per kilogram, which is the maximum level allowed by the U.S. government. Does […]