Btt-19 Obidjonov Jahongir

Look at this table about other hazards:

	Country	Hazard	Possible effect	Precautions taken
a)	Iran	hailstorm	penetrate the roof of a light structure	make roof covering hail resistant
b)	All countries	thunderstorm	cause structural damage to tall buildings	fit a lightning conductor
c)	Mot-dry countries	sandstorm	damage exterior surfaces of a building	stop by erecting barrier screens a few metres from the building
d)	Africa	attack by termites	destroy the wooden components of a building	treat wood with preservatives
e)	All countries	fire	cause structural damage to buildings	use fireproof materials

1. 
   What observations do you think you could make about buildings in the above countries?
   

Example: During a hailstorm in Iran, the roof of a light structure was penetrated because the roof covering had not been made hail resistant.

2. 
   What generalisations can you make?
   

Example: Roofs of ligh t structures in Iran are likely to be penetrated during a hailstorm if they are not hail resistant.

b) During a thunderstorm, structural damage was caused to a tall building because a lightning conductor had not been fitted.

Structural damage is likely to be caused to a building during a thunderstorm if a lightning conductor is not fitted.

c) During a sandstorm, the exterior surfaces of a building were damaged because a barrier screen had not been erected.

The exterior surfaces of a building are likely to be damaged during a sandstorm if a barrier screen is not erected a few meters from the building.

d) During an attack by termites, the wooden components of a building were destroyed because the wood had not been treated with preservatives.

The wooden components of a building are likely to be destroyed during an attack
by termites, if the wood is not treated with preservatives.

e) During a fire, structural damage was caused to a building because fireproof materials had not been used.

Structural damage is likely to be caused to a building during a fire if fireproof materials are not used.