The presence of air cavities is an adaptation of - (1) Desert plants (2) Trees (3) Water plants (4) Mesophytes

The presence of air cavities is an adaptation of - (1) Desert plants (2) Trees (3) Water plants (4) Mesophytes
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(3) Water plants Explanation: Totally submerged plants are the true water plants or hydrophytes. Because they are truly aquatic they have the greatest number of adaptations to life in water. Air-filled cavities often extend throughout the leaves and stems of aquatic plants, providing an internal atmosphere.
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The presence of air cavities is an adaptation of (1) Desert plants (2) Trees (3) Water plants (4) Mesophytes

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Last Answer : Water plants

Presence of a certain minimum quantity of fluorine is desirable in potable water to prevent (A) Dental cavities (B) Scale formation (C) Water-borne disease (D) Corrosion

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Plants which produce characteristic pneumat- ophores and show vivipary belong to (a) halophytes (b) psammophytes (c) hydrophytes (d) mesophytes.

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The lustre of the metals is because of (1) high density, due to closed packing of atoms (2) high polish (3) reflection of light due to the presence of free electrons (4) absorption of light due to the presence of cavities

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Air spaces are present in (a) Hydrophytes (b) Xerophytes (c) Mesophytes (d) Al1these

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Considered the following four conditions (A-D) and select the correct pair of them as adaptation to environment in desert lizards. The conditions (a)

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Thick cuticle, sunken stomates are found in leaves of: (a) Hydrophytes (c) Mesophytes (b) Xerophytes (d) Epiphytes

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Root cap is not found n: (a) Mesophytes (c) Hydrophytes (b) Xerophytes (d) Halophytes

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Which adaptation helps plants live in a biome that receives heavy snowfall?

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My Desert King Fig tree's figs are not ripening? What do I do?

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Briefly explain each of the following: 1. The trees in the Tropical Desert Forest have-stunted growth. -Geography

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How do trees in the Tropical desert forests adapt themselves to the dry climate? -Geography

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In order to prevent the expansion of deserts, trees are planted in strips or blocks with the shortest trees on the desert side and tallest on the other side. Such plantation is called? (1) shelter belts (2) agroforests (3) wind breaks (4) social forests

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Pick out the wrong statement about cavitation. (A) Sudden reduction of pressure in a fluid flow system caused by flow separation, vortex formation or abrupt closing of valve leads to cavitation (B) Cavitation may be caused due to boiling of liquid by decreasing the pressure resulting in formation & collapse of vapor cavities (C) Cavitation begins at higher static pressure and lower velocity in larger diameter pipelines resulting in audible noise(D) Large scale cavitation cannot damage pipeline, restrict fluid flow anddamage steam turbine blades

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Pick out the wrong statement about nucleate boiling. (A) Bubble generation is by expansion of entrapped gas/vapour at small cavities in the surface (B) Surface temperature is greater than the saturation temperature of the liquid (C) Heat transfer from the surface of the liquid is less than that in film boiling (D) The temperature is less than that of film boiling

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Powder metallurgy is used to produce (A) High precision components with complex cavities and sharp features (B) Components of large size (C) Porosity free components (D) Components of such alloys whose constituents do not form alloys readily

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Blister steel (A) Is obtained by cementation process (B) Is full of fissures and cavities (C) Can be easily welded (D) All the above

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A cylindrical copper block with resonant cavities around the circumference is used as what component of a magnetron?

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The cavities of a multicavity klystron are tuned to slightly different frequencies in what method of tuning?

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In a multicavity klystron, tuning all the cavities to the same frequency has what effect on the bandwidth of the tube?

Description : In a multicavity klystron, tuning all the cavities to the same frequency has what effect on the bandwidth of the tube?

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During a slow decompression, passengers will occur: a. The cabin temperature will fall as pressure reduces b. Body cavities (sinuses, ears, etc.) will become pressurised and may require assistance in venting c. As soon as the pressure falls, the oxygen drop-out system will operate d. No contra effects, as slow decompression has no effect on the human body

Description : During a slow decompression, passengers will occur: a. The cabin temperature will fall as pressure reduces b. Body cavities (sinuses, ears, etc.) will become pressurised and may require assistance in ... will operate d. No contra effects, as slow decompression has no effect on the human body

Last Answer : b. Body cavities (sinuses, ears, etc.) will become pressurised and may require assistance in venting