consume /kənˈsuːm/ (verb) to use something, especially fuel, energy or time Example: The printer consumes more toner than the downstairs printer
strictly /ˈstrɪktli/ (adverb) with a lot of control and rules that must be obeyed Example: Our store strictly enforces its return policy
trend /trend/ (noun) a general direction in which a situation is changing or developing Example: The clothing store tries to stay on top of all the new trends
experiment /ɪkˈsperɪmənt/ (noun) a scientific test that is done in order to study what happens and to gain new knowledge Example: Product developers must conduct hundreds of experiments in their research
demand /dɪˈmænd/ (noun) a very strong request for something; something that somebody needs Example: This style of cooking demands many exotic ingredients and a lot of preparation time
alternative /ɔːlˈtɜːrnətɪv/ (noun) a thing that you can choose to do or have out of two or more possibilities Example: To lower the cost of health insurance, my employer chose an alternative method of insuring us
potential /pəˈtenʃl/ (adjective) that can develop into something or be developed in the future Example: To avoid any potential side effects from the medication, be sure to tell your doctor all the drugs you are currently taking
fence /fens/ (noun) a structure made of wood or wire supported with posts that is put between two areas of land as a boundary , or around a garden, field, etc. to keep animals in, or to keep people and animals out Example: There is a white fence around his house.
harmful /ˈhɑːrmfl/ (adjective) causing damage or injury to somebody/something, especially to a person’s health or to the environment Example: This group of chemicals is harmful to people.
need /niːd/ (verb) to require something/somebody because they are essential or very important, not just because you would like to have them Example: Do you need me to help?
surround /səˈraʊnd/ (verb) to be all around something/somebody Example: Our house is surrounded with a lot of trees and flowers.
proportion /prəˈpɔːrʃn/ (noun) a part or share of a whole Example: A higher proportion of Americans go on to higher education than is the case in Britain.
heat /hiːt/ (noun) the quality of being hot Example: Firstly, heat the oil and add some onions .
harm /hɑːrm/ (noun) damage or injury that is caused by a person or an event Example: The villains didn't harm him.
nuclear /ˈnuːkliər/ (adjective) using, producing or resulting from nuclear energy Example: People are against the nuclear test in this area.
Renew /rɪˈnuː/ (verb) to begin something again after it stopped or was interrupted Example: Could you renew that book for me?
fossil fuel /ˈfɑːsl fjuːəl/ (noun) fuel such as coal or oil that was formed over millions of years from parts of dead animals or plants Example: Fossil fuels include fuels such as gas, coal and oil formed underground millions of years ago from plant and animal remains .
radiation /ˌreɪdiˈeɪʃn/ (noun) powerful and very dangerous rays that are sent out from radioactive substances Example: ultraviolet radiation
alternate /ˈɔːltərnət/ (adjective) happening or following one after the other regularly Example: She alternated between cheerfulness and deep despair.
ecology /iˈkɑːlədʒi/ (noun) the relation of plants and living creatures to each other and to their environment; the study of this Example: She hopes to study ecology at college.
exhaust /ɪɡˈzɔːst/ (noun) waste gases that come out of a vehicle, an engine or a machine Example: I'm afraid he's exhausted my patience.
renewable /rɪˈnuːəbl/ (adjective) that is replaced naturally or controlled carefully and can therefore be used without the risk of using it all up Example: There are some renewable energy sources such as wind and wave power.
needy /ˈniːdi/ (adjective) not having enough money, food, clothes, etc. Example: This fund is to help children of needy families.
consumption /kənˈsʌmpʃn/ (noun) the act of using energy, food or materials; the amount used Example: Industrialized countries should reduce their energy consumption.
fossil /ˈfɑːsl/ (noun) the parts of a dead animal or a plant that have become hard and turned into rock Example: Fossils of early reptiles were found in this area.
exhausted /ɪɡˈzɔːstɪd/ (adjective) very tired Example: The runners were exhausted when they crossed the finish line.
exhaustion /ɪɡˈzɔːstʃən/ (noun) the state of being very tired Example: She felt ill from exhaustion.
nuclear energy /ˌnuːkliər ˈenərdʒi/ (noun) a powerful form of energy produced by changing matter into energy by splitting the nuclei (= central parts) of atoms . It is used to produce electricity. Example: I think nuclear energy will be widely used in the future.
nucleus /ˈnuːkliəs/ (noun) the part of an atom that contains most of its mass and that carries a positive electric charge Example: DNA is stored in the nucleus of a cell.
geothermal /ˌdʒiːəʊˈθɜːrml/ (adjective) connected with the natural heat of rock deep in the ground Example: They are going to build a geothermal power station in this area.
geothermal heat /ˌdʒiːəʊ ˈθɜːməl hiːt/ (noun) Example: Geothermal heat comes from deep inside the Earth.
dam /dæm/ (noun) a barrier that is built across a river in order to stop the water from flowing, used especially to make a reservoir (= a lake for storing water) or to produce electricity Example: Dams have to be built in order to use this kind of energy.
solar panel /ˌsəʊlər ˈpænl/ (noun) a piece of equipment, often on the roof of a building, that uses light and heat energy from the sun to produce hot water and electricity Example: Solar panels are used to power satellites.
make use of /meɪk juːz əv/ (verb) Example: How to make full use of the alternative sources of energy is a really big question.
ceremony /ˈserəməʊni/ (noun) a public or religious occasion that includes a series of formal or traditional actions Example: The graduation ceremony lasted 4 hours.
nuclear reactor /ˌnuːkliər riˈæktər/ (noun) a large structure used to produce nuclear energy Example: Radiation from a nuclear reactor is very dangerous.
hydroelectricity /ˌhaɪdrəʊɪˌlekˈtrɪsəti/ (noun) electricity produced using the power of water Example: It is expensive to build a dam for electricity.
hydroelectric /ˌhaɪdrəʊɪˈlektrɪk/ (adjective) using the power of water to produce electricity; produced by the power of water Example: Is there a hydroelectric power station in your area?
run out (of something) /rʌn aʊt/ (verb) Example: Our major sources of energy are running out.
radioactive /ˌreɪdiəʊˈæktɪv/ (adjective) sending out powerful and very dangerous rays when the nuclei (= central parts) of atoms are broken up Example: Uranium is a radioactive material.
renewal /rɪˈnuːəl/ (noun) a situation in which something begins again after it stopped or was interrupted Example: The next renewal date is November 20th.
ecologist /iˈkɑːlədʒɪst/ (noun) a scientist who studies ecology Example: An ecologist studies the natural relationships between the air, land, water, animals, plants, etc.
ecological /ˌiːkəˈlɑːdʒɪkl/ (adjective) connected with the relation of plants and living creatures to each other and to their environment Example: The destruction of the rain forests is an ecological disaster.
fertilize /ˈfɜːrtəlaɪz/ (verb) to put pollen into a plant so that a seed develops; to join sperm with an egg so that a baby or young animal develops Example: Remember to fertilize the plants once a month.
fertile /ˈfɜːrtl/ (adjective) that plants grow well in Example: The soil in my garden is so fertile.
shrug /ʃrʌɡ/ (verb) to raise your shoulders and then drop them to show that you do not know or care about something Example: He shrugged his shoulders as if to say that there was nothing he could do about it.
splay /spleɪ/ (verb) to make fingers, legs, etc. become further apart from each other or spread out; to be spread out wide apart Example: The petals splay out from the middle of the flower.
surrounding /səˈraʊndɪŋ/ (adjective) that is near or around something Example: A lot of the children at the school come from the surrounding countryside.