Environmental Pollution and Energy Sources

Environmental Pollution

The negative change of the characteristics of the environment is called Pollution /Clouds containing Sulphur oxides (SOx) produce acid rain/ The depletion that human activities are causing in some products is Exhaustion of raw materials/ The presence in soil of substances in concentrations sufficient to confer harmful, unhealthy or hazardous properties is the Land pollution/ The Sustainable development considers the improvement of living conditions along with the stable ecological balance at the local, regional and global maintenance/ The substance that is opaque to ultraviolet (UV) light, and it blocks about 96% of the UV light that comes from the sun isOzone/ A land-fill site is A big hole that we make in ground to throw our waste into./ The decibel is The unit of noise/ Which f the following substances has the most recent depletion date?Silver/The energy source that splits atoms or uranium to make heat to generate electricity isnuclear fission/ The energy source that uses plants or waste to produce energy is biomass/ The energy source that uses collectors to heat water or air in buildings is solar energy/ The energy source that is dug out of the ground and mostly burned to make electricity iscoal/ Most of our energy comes from nuclear fission/ Hydropower is used to makeelectricity/Most oil is used to makegasoline/ Fossil fuels are renewable/Radioactive waste is produced bynuclear fission/ Our cleanest fossil fuel isnatural gas/The energy source that uses water rushing out from dams to make electricity issolar energy/The energy source that uses big machines with blades to pump water, grind grain or make electricity is wind power/ The energy source that comes out of the ground invisible and odorless and is mainly used for heat isnatural gas/ The energy source that is pumped out of the ground and used mainly to make gasoline isoil/Solar cells are used to make electricity/The fuel for nuclear fission is uranium/Most coal is used to makeelectricity/Decisions about energy sources should includeall of the above/ To make electricity with wind, we must havegentle breezes/A problem with solar energy is the sun doesn’t always shine/ The forces between two charges of the same sign are Repulsion/If a material allows the passage of electric current through it, it is aConductor/ The branch of physics that studies the control of the movement of electrons in semi-conducting materials isElectronic/ Those materials that do not conduct electricity, but when certain factors are changed , they become conductors areSemi-conductors/The current produced when electrons always move in the same direction inside an electric circuit isDirect current/ The variable that tells us the difference in electrical energy per unit of charge between two points in a circuit isVoltage/The Ohm's law says The current in a circuit is directly proportional to the electric potential difference impressed across its ends and inversely proportional to the total resistance offered by the external circuit./What electric operator is represented with the following symbol?Resistor/One-way switch/Fuse/Battery/Push switch /Motor/Buzzer/Relay/Two-way switch/Lamp/Potentiometer/problema 2: V=10,5 V/ problema 1:  0,034Ω