Adolescence /ˌæd

chain /tʃeɪn/ noun CONNECTED THINGS
1. [ C ] a set of connected or related things
She has built up a chain of 180 bookshops across the country.
We witnessed a remarkable chain of events in eastern Europe in 1989.
fumes /fjuːmz/ plural noun
strong, unpleasant and sometimes dangerous gas or smoke
exhaust fumes Petrol fumes always make me feel ill. cigar fumes
greenhouse gas noun [ C ]
a gas which causes the greenhouse effect, especially carbon dioxide
impact /ˈɪm.pækt/ noun [ C usually singular U ]
1. the force or action of one object hitting another
The impact of the crash reduced the car to a third of its original length.
The bullet explodes on impact (= when it hits another object) .
2. a powerful effect that something, especially something new, has on a situation or person
The anti-smoking campaign had had/made quite an impact on young people.
The new proposals were intended to soften the impact of the reformed tax system.
pollutant /pəˈluː.t ə nt/ /-t ̬ ə nt/ noun [ C ]
a substance that pollutes Sulphur dioxide is one of several pollutants that are released into the atmosphere by coal-fired power stations.
pollution /pəˈluː.ʃ ə n/ noun [ U ]
damage caused to water, air, etc. by harmful substances or waste air/water pollution
The manifesto includes tough measures to tackle road congestion and environmental pollution.
process /ˈprəʊ.ses/ /ˈprɑː-/ noun [ C ]
1. a series of actions that you take in order to achieve a result the peace process
Increasing the number of women in top management jobs will be a slow process.
This decision may delay the process of European unification.
The party has begun the painful (= difficult) process of rethinking its policies and strategy.
Going to court to obtain compensation is a long process.
She arrived at the correct answer by a process of elimination(= by deciding against each answer that was unlikely to be correct until only one was left) .
2. a series of changes that happen naturally
the digestive process the ageing process It's all part of the learning process.
3. a method of producing goods in a factory by treating raw materials
They have developed a new process for extracting aluminium from bauxite.
refuse /ˈref.juːs/ noun [ U ] formal
unwanted waste material, especially material that is regularly thrown away from a house, factory, etc.; rubbish garden/kitchen refuse