Meaning: 'Installation' refers to the process of setting up equipment or systems, in this case, renewable energy systems.

Wrong options:

• consistent: The word 'consistent' is an adjective that describes something that is steady or uniform, which does not fit the context of discussing the initial phase of setting up energy systems.
• drawbacks: The term 'drawbacks' is a noun that refers to disadvantages or negative aspects, which does not fit as it does not describe the action of setting up systems.
• intermittent: The word 'intermittent' is an adjective that describes something that occurs at irregular intervals, which does not fit as it does not refer to the act of installation.
• ecological: The term 'ecological' is an adjective that relates to the environment, but it does not fit as it does not describe the process of setting up renewable energy systems.
• benefits: The word 'benefits' is a noun that refers to advantages, which does not fit as it does not describe the action of installation.
• economic: The term 'economic' is an adjective that relates to the economy, which does not fit as it does not describe the act of setting up systems.

Correct answer: intermittent

Explanation: The word 'intermittent' is an adjective that describes the nature of sunlight and wind as being irregular or not constant. This fits grammatically and contextually, as it highlights the challenges faced in relying on these energy sources.

Meaning: 'Intermittent' means occurring at irregular intervals; not continuous or steady, which is relevant to the availability of sunlight and wind.

Wrong options:

• consistent: The word 'consistent' is an adjective that implies something is steady and reliable, which contradicts the nature of sunlight and wind as they are not always available.
• installation: The term 'installation' is a noun that refers to the act of setting up systems, which does not describe the nature of sunlight and wind.
• drawbacks: The word 'drawbacks' is a noun that refers to disadvantages, which does not fit as it does not describe the nature of energy sources.
• ecological: The term 'ecological' is an adjective that relates to the environment, but it does not describe the nature of sunlight and wind.
• benefits: The word 'benefits' is a noun that refers to advantages, which does not fit as it does not describe the nature of energy sources.
• economic: The term 'economic' is an adjective that relates to the economy, which does not fit as it does not describe the nature of sunlight and wind.

Correct answer: benefits

Explanation: The word 'benefits' is a noun that refers to the positive outcomes of adopting renewable energy, specifically in reducing carbon emissions and conserving resources. It fits grammatically and contextually as it highlights the advantages of renewable energy.

Meaning: 'Benefits' refers to the positive effects or advantages gained from a particular action or decision, in this case, the adoption of renewable energy.

Wrong options:

• consistent: The word 'consistent' is an adjective that describes something that is steady or uniform, which does not fit as it does not refer to the positive outcomes of renewable energy.
• installation: The term 'installation' is a noun that refers to the act of setting up systems, which does not fit as it does not describe the positive outcomes of renewable energy.
• drawbacks: The word 'drawbacks' is a noun that refers to disadvantages, which contradicts the context of discussing the positive aspects of renewable energy.
• intermittent: The term 'intermittent' is an adjective that describes something that occurs at irregular intervals, which does not fit as it does not refer to the positive outcomes of renewable energy.
• ecological: The word 'ecological' is an adjective that relates to the environment, but it does not specifically refer to the positive outcomes of renewable energy.
• economic: The term 'economic' is an adjective that relates to the economy, which does not fit as it does not describe the positive outcomes of renewable energy.

Correct answer: economic

Explanation: The word 'economic' is an adjective that describes growth related to the economy. It fits grammatically and contextually as it highlights the potential for job creation and economic stimulation through renewable energy adoption.

Meaning: 'Economic' refers to anything related to the economy, particularly in terms of growth and financial aspects.

Wrong options:

• consistent: The word 'consistent' is an adjective that describes something that is steady or uniform, which does not fit as it does not relate to growth in an economic context.
• installation: The term 'installation' is a noun that refers to the act of setting up systems, which does not fit as it does not describe growth.
• drawbacks: The word 'drawbacks' is a noun that refers to disadvantages, which contradicts the context of discussing positive growth opportunities.
• intermittent: The term 'intermittent' is an adjective that describes something that occurs at irregular intervals, which does not fit as it does not relate to economic growth.
• ecological: The word 'ecological' is an adjective that relates to the environment, but it does not specifically refer to economic growth.
• benefits: The term 'benefits' is a noun that refers to advantages, which does not fit as it does not describe the type of growth being discussed.