Question

Select the most appropriate linking word that would start the next paragraph.

There is new scientific evidence from the Cancer Research Agency (CRA) that exposure to steel welding fumes can cause lung cancer and possibly kidney cancer in humans. Control of the cancer risk will require suitable engineering controls for all indoor welding activities.

…, because general ventilation does not achieve the necessary control, we recommend that all welding sites install extra fans and venting.

Answer 1

However

Step-by-step explanation:

Answer 2

The transitional word 'Therefore' aptly connects evidence from the CRA about welding fumes and cancer to a recommendation for improved ventilation at welding sites. This approach is consistent with research methodologies that have established connections between other cancer risks and environmental factors, such as the well-documented link between smoking and lung cancer.

Step-by-step explanation:

To link the new paragraph smoothly with the presented evidence from the Cancer Research Agency (CRA), an appropriate transitional phrase should be used. The most suitable linking word to start the next paragraph could be “Therefore”, implying a conclusion drawn from the previously stated facts.

Therefore, because general ventilation does not achieve the necessary control, we recommend that all welding sites install extra fans and venting.

This kind of detailed and evaluative research is similar to those studies linking lung cancer and smoking, as demonstrated by Richard Doll and Austin Bradford Hill, or the more recent works referenced by LibreTexts™ on occupational hazards and lung cancer risks. Reliable information like that found on LibreTexts reflects extensive research, such as the 50 year longitudinal studies carried out by the American Cancer Society on the links between smoking and increased rates of lung cancer.