TODAY SCIENTIFIC PROGRESS IS MOSTLY DEFINED IN TERMS OF (TECHNOLOGY...

2. Today scientific progress is mostly defined in terms of (technology) ...

advancements.

D. READING :

I.

Read the passage and fill in the missing words.(12pts)

pesticides, make, pollutants, inhabitants, mixtures, pollution, chemicals

Pollution is any contamination of the environment which causes harm to the environment

or the (1) ... of the environment. There are many kinds of pollution, and

there are many pollutants . Some obvious kinds of pollution are pollution of the air, soil and

water. Some less obvious, or less salient, kinds of (2) ... are radioactive,

noise, light pollution and green - house gasses.

Air pollution can be caused by particles, liquids, or gases that (3) ... the

air harmful to breath. There are two main types of air pollution: primary and secondary.

Primary pollutants enter the air directly, like smoke from factories and car exhaust.

Secondary pollutants are (4) ... that mixed together to pollute the air,

like (5) ... of emissions, or waste output, from vehicles and factory smoke that

change to form more dangerous pollutants in the air and sunlight.

Soil pollution can be caused by(6) ..., leakage from chemical tanks, oil

spills and other chemicals which get into the soil by dumping or accidental contamination.

Soil pollution can also cause water pollution when underground water becomes contaminated

by coming into contact with the polluted soil.

II. Answer the questions. (8pts)