Why do 2 negatives equal a positive? Each number has an “additive inverse” associated to it (a sort of “opposite” number), which when added to the original number gives zero. The fact that the product of two negatives is a positive is therefore related to the fact that the inverse of the inverse of a […]
What are the two types of seasonal winds?
What are the two types of seasonal winds? The winds blowing throughout the year from one latitude to another in response to latitudinal differences in air pressure are called “planetary or prevailing winds”. They involve large areas of the globe. Two most important prevailing winds are trade winds and westerly winds. 2. What type of […]
What are the disadvantages of bioplastics?
What are the disadvantages of bioplastics? The Cons of Bioplastics Growing demand for bioplastics creates competition for food sources, contributing to the global food crisis. Bioplastics won’t biodegrade in a landfill. Bioplastics encourage people to litter more. Bioplastics contaminate plastic recycling streams. Bioplastics are not the answer to marine litter. Why bioplastics are not much […]
Is upthrust a contact force?
Is upthrust a contact force? Examples of contact forces are: friction • air resistance • water resistance • upthrust. Some forces do not need to touch the thing that they are affecting. They are called non- contact forces. Which of the following is NOT a non-contact force? Therefore, clearly from the above discussion we can […]
What is the diameter of 12 AWG wire?
What is the diameter of 12 AWG wire? Breaking Force for Copper Wire AWG gauge Conductor Diameter Inches Ohms per 1000 ft. 11 0.0907 1.26 12 0.0808 1.588 13 0.072 2.003 14 0.0641 2.525 What is the diameter of a 6 inch circle? Circumference & Areas Size in Inches Circumference Inches Area in Square Inches […]
What is the most common type of scientific inquiry?
What is the most common type of scientific inquiry? The observational method is most common in the natural sciences, especially in fields such as biology, geology and environmental science. It involves recording observations according to a plan, which prescribes what information to collect, where it should be sought, and how it should be recorded. What […]
What are the effects of heating and cooling on a sounded solution?
What are the effects of heating and cooling on a sounded solution? When you heat a saturated solution the molecules of liquid acquires more kinetic energy and move away from each other eventually creating more space for solute to dissolve hence solubility increases whereas on cooling molecules of liquid loses kinetic energy and come closer […]
Does a single raindrop illuminated by sunshine disperses?
Does a single raindrop illuminated by sunshine disperses? Does a single raindrop illuminated by sunlight deflect light of a single color or does it disperse a spectrum of colors? It disperses a spectrum of colors, by both reflection and refraction. “Each color is partly refracted out into the air, and partly reflected back into the […]
What is the O layer in soil?
What are the stages of response by the immune system to infection?
What are the stages of response by the immune system to infection? The normal immune response can be broken down into four main components: pathogen recognition by cells of the innate immune system, with cytokine release, complement activation and phagocytosis of antigens. the innate immune system triggers an acute inflammatory response to contain the infection. […]