Linking words/phrases: แบบฝึกหัด

Which linking phrase is best suited to show a cause-and-effect relationship in this sentence?
The eggshell dissolved __________ the acetic acid in the vinegar reacted with the calcium carbonate.

Choose the correct linking phrase to complete the explanation of a result:
The equipment fault of oil tankers occurred; __________, oil spills contaminated the ocean water.

In an academic lab report, a student writes the following sentence to clarify the connection between a chemical reaction and its outcome:

"The bubbles on the eggshell are carbon dioxide generated as a result of the reaction between the carbonate and acetic acid."

According to the rhetorical functions and language items typical of academic texts, what is the primary function of the bolded phrase?

Read the following sentence and choose the best linking word to complete it:
Some students prefer working in groups; __________, others find it more effective to study alone.

Read the following short description from a science report and choose the best linking word to complete it:

The researchers added more nutrients to the soil; __________, the plants grew taller and produced more flowers.

Complete the academic comparison by selecting the most appropriate linking words/phrases from the list below: (Consequently, In contrast, In order that, Furthermore).

(a) Renewable energy sources generate minimal carbon emissions; {{1}}, fossil fuels release substantial greenhouse gases into the atmosphere.
(b) The factory failed to maintain its filtration units; {{2}}, toxic wastewater contaminated the adjacent river system.