What is nerve impulse in simple words? A nerve impulse is the way nerve cells (neurons) communicate with one another. Nerve impulses are mostly electrical signals along the dendrites to produce a nerve impulse or action potential. The action potential is the result of ions moving in and out of the cell. What are the […]
What does the water on the plastic wrap represent?
What does the water on the plastic wrap represent? This represents surface water, such as oceans, lakes, or streams. 4. Put plastic wrap over the top of the bowl, making sure it is on tight. What does the plastic wrap represent in this experiment? In the experiment, the beakers represented the earth’s atmosphere, the plastic […]
Why did Germany not invade Sweden?
Why did Germany not invade Sweden? Hitler did not invade Sweden because he did not want to waste valuable troops in Scandinavia when he had other concerns. The Swedes proved their neutrality by not letting Germany use Swedish airspace: when the Germans flew over Sweden to attack Norway, the Swedes fired back with anti-aircraft guns. […]
How does recycling water help the environment?
How does recycling water help the environment? What are the Environmental Benefits of Water Recycling? Water Recycling Can Decrease Diversion of Freshwater from Sensitive Ecosystems. Water Recycling Decreases Discharge to Sensitive Water Bodies. Recycled Water May Be Used to Create or Enhance Wetlands and Riparian (Stream) Habitats. How can we reduce reuse and recycle water […]
What is the working principle of capacitor?
What is the working principle of capacitor? A capacitor works on the principle that the capacitance of a conductor increases appreciably when an earthed conductor is brought near it. Hence, a capacitor has two plates separated by a distance having equal and opposite charges. What is the main function of capacitor? A capacitor is an […]
Why is a 1982 D penny rare?
Why is a 1982 D penny rare? Newly found 1982-D Small date copper cent. The Mint switched over from striking copper-alloy to copper-plated zinc planchets sometime in mid-1982 as a cost saving measure – the copper-alloy planchets were too expensive to strike and the Mint was losing money. But it didn’t end there. What are […]
What acetone Cannot dissolve?
What acetone Cannot dissolve? Many kinds of plastic do not dissolve in acetone. Polypropylene and nylon are unaffected, PTFE unsurprisingly handles it just fine as well. Two kinds of plastic that do dissolve in acetone are PVC and polystyrene. Why is nail polish soluble in acetone but not in water? Nail varnish does not dissolve […]
Why are periodic forest fires beneficial to the forest?
Why are periodic forest fires beneficial to the forest? When done in small doses, controlled burns can be beneficial to forest growth. Naturally, periodic forest fires help to clear away old brush and allow for new growth. They recycle nutrients back into the soil, disperse seeds of fire-adapted plants and burn ground cover to give […]
What are the two types of electrostatic fields?
What are the two types of electrostatic fields? The electric field is mainly classified into two types. They are the uniform electric field and the nonuniform electric field. How do you know if a field is electrostatic? A vector field is a possible electric field in the electrostatic regime if and only if its curl […]
What are 5 ways rocks can be broken down?
What are 5 ways rocks can be broken down? Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth. Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. Once a rock has been broken down, a process called erosion transports the bits […]