Answer:
d) Barnacles and other sea creatures can cling to exposed surfaces, blocking intakes and weighing down machinery.
Explanation:
Presence of marine animals is not a big challenge that prevent us from the production of electrical energy through the use of wave energy because there is no channel from which the sea creatures enters the machinery and cause damage to it but the machinery causes serious damage to marine animals if they comes in contact with the blades the blades can kills these marine animals due to their sharp needles so presence of marine animals is not threat for machinery.
a) Waves are too inconsistent to be useful.
b) Salt water can corrode metal components.
c) Storms and forceful waves can damage power systems or loosen them from their moorings
d) Barnacles and other sea creatures can cling to exposed surfaces, blocking intakes and weighing down machinery.
