Essay on clean green healthy nation for science and technology
Answers
Adopt solid waste management technologies
Mobile apps to report dirty areas-And the civic body responsible must take action on it.’Swachhta’ app by central govt is a good example
Bio Toilets
Garbage collection
Disposal/bio composting
BE YOURS.........^_^
matters are made up of atoms. Then ask the next question, "What are atoms?"
Atoms are the smallest part of an element. They are composed of nucleus and electrons, electrons surround nucleus. Elements are identified by the number of electrons in orbit around nucleus of atoms and by the number of protons in nucleus.
Understanding Electricity - What is electricity?, Current, Voltage and Resistance, How to measure current, voltage and resistance, How electricity works
Nucleus is made up of protons and neutrons, and the number of protons and neutrons are balanced. Neutrons have no electric charge, protons have positive charges (+) and electrons have negative charges (-). A positive charge of proton equals a negative charge of electron.
Electrons are bound in their orbit by attraction of protons, but electrons in the outer band can become free of their orbit by some external forces. These are referred to as free electrons, which move from one atom to the next, electron flows are produced. These are the basis of electricity. Materials that allow many electrons to move freely are called conductors and materials that allow few free electrons to move are called insulators.
All matters are made up of atoms that have electric charges. Therefore, they have electric charges. For the matter that has a balanced the number of protons and electrons, positive charge force and negative charge force are balanced. It is called neutral state of an atom. (The number of protons and electrons remains equal.)