U1-4.English for Science&Technology

The field of __________ involves the study of chemical elements and their compounds.

• Biology

• Chemistry

• Astronomy

• Botany

Scientists made a major __________ in the fight against cancer.

• disorder

• conclusive

• breakthrough

• flawed

The __________ of many scientific experiments remains to be discovered.

• surface

• atmosphere

• underlying cause

• conclusion

__________ became popular in the 1980s as a portable device that allowed people to listen to music while moving, often paired with headphones.

• Personal stereos

• Cassette players

• Vinyl records

• Speakers

__________ are substances added to food to enhance its flavor, appearance, or shelf life.

• Vitamins

• Food additives

• Preservatives

• Proteins

Products labeled as __________ are made from natural ingredients without artificial chemicals.

• synthetic

• organic

• processed

• modified

__________, used in refrigeration and air conditioning, have been linked to ozone layer depletion.

• Carbon monoxide

• CFCs

• Hydrocarbons

• Nitrogen oxides

Carbon capture technology works by __________ waste carbon dioxide from the atmosphere.

• generating

• eliminating

• capturing

• creating

A major advantage of carbon capture technology is __________ its cost to around $94 per ton.

• increasing

• reducing

• freezing

• stabilizing

Solar energy is a renewable energy source because it __________ sunlight to produce electricity.

• absorbs

• reflects

• deflects

• generates