How does deicing with salt negatively impact the environment? How does de-icing roads with salt negatively impact the environment? It removes necessary salt from the local water courses. c. The high salinity of the surface runoff is harmful to freshwater ecosystems. What are the environmental impacts of salt? But it can also have serious, negative […]
What is a healthy breathing rate?
What is a healthy breathing rate? Normal respiration rates for an adult person at rest range from 12 to 16 breaths per minute. Does your oxygen level drop when exercising? The oxygen level in your blood decreases slightly while exercising because physical activities lower the amount of oxygen that binds to hemoglobin. When you’re working […]
What are SI units of mass?
What would happen if there was no hydrosphere on earth?
What would happen if there was no hydrosphere on earth? We know weather happens in the atmosphere, but without the hydrosphere, there would be no water to evaporate and so no cloud or rain could form. Without oceans and land (hydrosphere and geosphere), there would be no wind (as winds are produced by differences of […]
What are objects?
What are objects? Definition: An object is a software bundle of variables and related methods. You can represent real-world objects using software objects. Everything that the software object knows (state) and can do (behavior) is expressed by the variables and methods within that object. Will a styro cup float on water? Styrofoam is insoluble in […]
Why is concave mirror used in Searchlight & head lights?
Why is concave mirror used in Searchlight & head lights? When the bulb of headlight is placed at focus of concave mirror, it allows the light to spread out to infinity (longer distances) and at infinity they are approximately parallel. Hence, concave mirrors are used in the headlights of vehicles. What is the role of […]
What are some short term effects of stress?
What are some short term effects of stress? Short term: You may feel butterflies in your stomach, pain, or nausea, or might even vomit. Your appetite can change and you can have diarrhea, constipation, or heartburn. Long term: Stress can lead to severe chronic pain and changes in your eating habits. You can also develop […]
What are some long term consequences of desertification?
What are some long term consequences of desertification? Desertification reduces the ability of land to support life, affecting wild species, domestic animals, agricultural crops and people. The reduction in plant cover that accompanies desertification leads to accelerated soil erosion by wind and water. How can we reduce land degradation? 5 possible solutions to soil degradation […]
What type of reaction is copper II chloride?
What type of reaction is copper II chloride? Copper(II) chloride is a mild oxidant. It decomposes to copper(I) chloride and chlorine gas near 1000 °C: 2 CuCl2 → 2 CuCl + Cl. Copper(II) chloride (CuCl2) reacts with several metals to produce copper metal or copper(I) chloride (CuCl) with oxidation of the other metal. What is […]
What is a physical standard?
What is a physical standard? A quantitave estimation taken to analyze all of the requirements which must be fulfilled for any production process to take place. For instance, the requirements of the machine, the method of calculating the labor as well as the main method used to determine the standard costs are all known as […]