The question asks for the specific term used to describe a large tidal wave. We need to identify the correct geological or oceanographic term among the given options.
Correct Option: B) Tsunami is the correct term for a large and often destructive ocean wave, typically caused by an underwater earthquake or other large-scale disturbance. Although colloquially called a "tidal wave," tsunamis are not related to astronomical tides.
The question asks for the meaning of the word "tsunami". This is a direct recall question related to geographical and scientific terminology. We need to identify the correct definition from the given options.
Correct Option: C) Harbour waves. The word "tsunami" is derived from the Japanese words "tsu" (harbor) and "nami" (wave), literally meaning "harbor wave". This term reflects the phenomenon where these waves, often imperceptible in the open ocean, grow to immense heights and cause devastating damage upon reaching coastal areas and harbors.
The question asks for the specific date when a major tsunami impacted the coastal parts of India. This is a factual question related to a significant natural disaster in recent history. Recalling the year of the Indian Ocean Tsunami is key to answering this question.
The tsunami caused widespread destruction and loss of life across many countries bordering the Indian Ocean, including India, Sri Lanka, Thailand, Indonesia, and others. In India, coastal areas, particularly in Tamil Nadu, Andhra Pradesh, Kerala, and the Andaman and Nicobar Islands, were severely affected.
D) December, 2004 â The devastating Indian Ocean Tsunami, which severely affected coastal parts of India, occurred on December 26, 2004.
The question asks for the specific event that led to the submergence of Indira Point in the Andaman and Nicobar Islands. We need to identify the major natural disaster that caused significant geographical changes in the region around 2004.
D) The 2004 tsunami â The 2004 Indian Ocean tsunami, triggered by a powerful earthquake, caused widespread destruction and significant geographical changes, including the submergence of Indira Point due to land subsidence and massive waves.
The question asks to identify the correct statements regarding the concerns associated with ocean acidification. We need to evaluate each statement based on the known impacts of increasing ocean acidity.
A) 1, 2 and 3 only. This option correctly identifies the direct and indirect impacts of ocean acidification on marine life, particularly calcifying organisms and the food web.
To answer this question, we need to identify which of the given factors directly influence the generation and movement of ocean currents. We will analyze each factor's role in oceanography.
Based on this analysis, factors 1, 2, and 3 directly influence ocean currents.
Correct Option: B) 1, 2 and 3