The ideal conditions for coral growth are: 1. water temperature around 20°C 2. tropical waters (between 30°N and 30°S) 3. highly saline water 4. adequate oxygen

Related MCQs

• Consider the following statements: 1. Tropical cyclones have circular isobars. 2. Tropical cyclones originate· entirely within tropical air mass. 3. The intensity and magnitude of hurricanes generally exceed those of typhoons. 4. Tropical cyclones are more destructive than the western disturbances. Select the correct answer by using the following codes: [CDS 2001]
• Why are major fishing areas of the world confined to the temperate zone? 1. Cold and warm currents meet, creating conditions favourable for plankton growth 2. The fish of these waters are highly palatable as human food 3. There is a ready mark, in the land masses of the zone 4. The existence of submarine plateaus help in growth of fish population
• Consider the following statements: 1. In the tropical rainforest of Brazil, the average diurnal range of temperature is much greater than the average annual range of temperature. 2. In the humid subtropical climate of Kyushu island of Japan, the rainfall for the year almost totals that of the rainfall in tropical rainforest. Which of the statements given above is/are correct? [IAS 2007]
• Though coffee and tea both are cultivated on hill slopes, there is some difference between them regarding their cultivation. In this context, consider the following statements: 1. Coffee plant requires a hot and humid climate of tropical areas whereas tea can be cultivated in both tropical and subtropical areas. 2. Coffee is propagated by seeds but tea is propagated by stem cuttings only. Which of the statements given above is/are correct? [IAS 2010]
• Which of the following are true with regard to temperature control of the atmosphere of a given place? 1. The major temperature contrasts on earth's surface are between land masses and oceans 2. During night, the water surface cools more rapidly than the land surface 3. Temperature generally decreases with latitude on either side of the equator 4. Temperature rises to a maximum during summer and falls to a minimum during winter
• Which one of the following conditions are not favourable for the growth of coral rects ? [IAS 2003]
• Consider the following statements regarding general characteristics associated with tropical cyclones 1. Tropical cyclones move with very low velocity over the oceans but become strong while moving over the land areas. 2. They are confined to a particular period of the year (mainly summer) and normally move from east to west. Which of the statement(s) given above is/are correct? [IAS 2009]
• Consider the following ecosystems: 1. Taiga 2. Tropical evergreen 3. Tropical deciduous 4. Tundra The correct sequence in decreasing order of the albedo values of these ecosystem is: [IAS 2002]
• Which of the following is not an important condition for growth of coral?
• Which of the following are the ideal conditions for the phenomenon of temperature inversion to occur? [IAS 2001] 1. Long nights 2. Cloudy sky 3. Calm and stable air 4. Dry air