does the north pole have land under it?
the north pole sits on a floating ice sheet which is called the arctic ice sheet. there is no land underneath it, but the sea depth at the north pole has been measured at 4,261 metres (13,980 ft). because of this, the north pole is incapable of supporting any plant or animal life on it.
the north pole sits on a floating ice sheet which is called the arctic ice sheet. there is no land underneath it, but the sea depth at the north pole has been measured at 4,261 metres (13,980 ft). because of this, the north pole is incapable of supporting any plant or animal life on it.
heat lost by the vessel and water= [150 x 4.2 x (30 - 5) j + 100 x 0.4 x (30-5)] j = (150 x 4.2 x 25 + 100 x 0.4 x 25) j = (15,750 + 1000) j= 16,750 j heat gained by ice to change into water at 0 °c = m x specific latent heat of fusion of ice = {m x 336} heat gained by water to come to final temperature (5 °c) = m x specific heat capacity of water x final temperature = (m x 4.2 x 5) = 21m if there is no loss of heat to the surroundings, according to the principle of calorimetry: heat gained by ice to melt and come to final temperature = heat lost by vessel and water or 336m + 21m= 16,750 or 357m = 16,750 or m = 16750/357 = 46.92 reason: saturn has some unique characteristic like :-1. saturn has rings around it, these rings are made up of rocks, ice and dust.2. density of saturn is less than that of water (density is mass per unit volume), i.e. it is very light so if there were large enough ocean saturn would float on it. precipitation is the deposition of moisture from the atmosphere onto the earth’s surface. this may be in form of rain, hail, frost, fog, sleet or snow. the crocodile is the reptile that is characterized by the presence of a four-chambered heart.   reptiles are a class of vertebrates made up mostly of snakes, turtles, lizards, and crocodilians. instead of possessing gills like fish or amphibians, reptiles have lungs for breathing. reptiles are four-legged vertebrate animals. the skin of reptiles is covered with scales their metabolism depends on the temperature of their environment. reptiles are oviparous (egg laying) reptiles have several bones in the lower jaw, only one of which, the dentary, bears teeth. almost all reptiles and amphibians have three-chambered heart, except crocodile. two poles of height 6 m and 11 m, respectively stand on a plane ground. if the distance between their feet is 12 m, then what is the distance between their tops? you don't say that the area must be a rectangle. the true largest area would be a circle, with the circumference equal to 400m and the area would be 12,732.4 m^2. however, evidently, the area is restricted to a rectangle, in which case the maximum area is a square, and the side of the square will be 
400/4 = 100 m. the area is 100x100 = 10,000 m^2.
algebraically,
let x = one pair of opposite sides
(400-2x)/2 = 200-x = the other pair of opposite sides

area = a(x) = x(200 - x) = -x^2 + 200x
x-coordinate of vertex = -b/2a = 200/2 = 100
a(100) = 10,000

that's it! ;) hydroponics is a type of horticulture and a subset of hydroculture which involves growing plants (usually crops) without soil, by using mineral nutrient solutions in an aqueous solvent. terrestrial plants may grow with their roots exposed to the nutritious liquid, or, in addition, the roots may be physically supported by an inert medium such as perlite, gravel, or other substrates. correct spelling for the english word "undersea topography" is [ˌʌndəsˈiː təpˈɒɡɹəfi], [ˌʌndəsˈiː təpˈɒɡɹəfi], [ˌʌ\_n\_d\_ə\_s\_ˈiː t\_ə\_p\_ˈɒ\_ɡ\_ɹ\_ə\_f\_i]] (ipa phonetic alphabet) information is below. hi carla! how lucky are you and your three kids to be spending the holidays in the most magical place! unfortunately, i think you'll find it much cooler than your tropical island. the average low temperature is 52 degrees, and the high is 73. but don't fret - these temperatures are most enjoyable if you dress for it! i recommend layers. capris, tee shirts, and the a hoody and windbreaker should be fine. as the sun warms it up in the afternoon, then you can peel off a layer or two. wishing you a magical vacation carla!