P2.U7

to explode; to break out with force

• anthropology (n)
• reservoir (n)
• urgent (adj)
• wire (n)
• erupt (v)

invisible line that marks the extent of a state's territory

• oral (adj)
• everyday (adj)
• distribute (v)
• Buddhist (n)
• boundary (n)

a sudden violent movement of the earth's surface, sometimes causing great damage

• select (v)
• hidden (adj)
• crisis (n)
• juggle (v)
• earthquake (n)

area

• describe (v)
• serve (v)
• agriculture (n)
• well-being (n)
• zone (n)

a substance that becomes hard as it dries and is used, especially for spreading on walls and ceilings in order to give a smooth surface

• rhythm (n)
• supply (v)
• reduce (v)
• complex (adj)
• plaster (n)

a physical substance that things can be made from

• lyrics (n)
• require (v)
• extremely (adv)
• organ (n)
• material (n)

to move backwards and forwards or up and down in quick, short movements, or to make something or someone do this

• explain (v)
• risk (n)
• average (adj)
• neuron (n)
• shake (v)

to make something stronger

• compare (v)
• significant (adj)
• scarce (adj)
• speed (n)
• reinforce (v)

the dried, yellow stems of crops such as wheat, used as food for animals or as a layer on the ground for animals to lie on, and for making traditional objects

• contrast (v)
• manage (v)
• experience (v)
• pathway (n)
• straw (n)

to be inside or within something

• define (v)
• adequate (adj)
• rainfall (n)
• brain cell (n)
• enclose (v)