Meaning: 'Portion' means a part or segment of something larger, in this case, referring to a part of the total cost being covered.

Wrong options:

• wholesome: 'Wholesome' refers to something conducive to health or morally good, which does not fit the financial context of the sentence.
• total: 'Total' implies the whole amount, which contradicts the idea of covering only a part of the cost.
• worth: 'Worth' refers to the value of something, but it does not indicate a part of the cost, making it contextually inappropriate.

Correct answer: partnership

Explanation: The term 'partnership' is grammatically correct as it denotes a collaborative relationship, which is the intended meaning in the context of the project involving multiple institutions. It also matches the tone and style of the text, emphasizing cooperation.

Meaning: 'Partnership' means a cooperative relationship between parties, especially in a business or project context, highlighting the collaboration between the colleges.

Wrong options:

• disguise: 'Disguise' refers to concealing one's identity or appearance, which is irrelevant in this context.
• contrast: 'Contrast' implies a difference between two or more entities, which does not fit the collaborative nature of the project.
• revenge: 'Revenge' refers to retaliatory action, which is completely unrelated to the context of collaboration.

Correct answer: unprecedented

Explanation: The word 'unprecedented' fits grammatically and contextually as it describes something that has never happened before, which is appropriate when discussing detailed mapping of tidal energy, suggesting a novel approach.

Meaning: 'Unprecedented' means never done or known before, indicating that the detail of the mapping is groundbreaking.

Wrong options:

• unexpected: 'Unexpected' refers to something surprising, which does not accurately describe the nature of the detailed mapping.
• unforgiven: 'Unforgiven' implies a lack of forgiveness, which is irrelevant in this context.
• universal: 'Universal' means applicable everywhere, which does not convey the specific, detailed nature of the mapping being discussed.

Correct answer: contribute

Explanation: The verb 'contribute' is grammatically correct and contextually appropriate as it indicates providing something (in this case, energy) to a larger goal, which aligns with the sentence's focus on energy needs.

Meaning: 'Contribute' means to give or supply something, particularly in a collaborative effort, which fits the context of addressing energy needs.

Wrong options:

• give: 'Give' is too general and does not convey the specific sense of providing as part of a larger effort, making it less precise in this context.
• contain: 'Contain' means to hold or include, which does not fit the context of providing energy.
• get: 'Get' implies receiving rather than providing, which is the opposite of what the sentence intends to convey.