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They have to where prussurized siuts because the gravity passed the atmosphere has gotten much more dense .
astronauts wear special suits which protect them from the heat
astronauts wear special suits which protect them from the heat
containers, space suits,
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Deep sea divers wear special suits to keep their body from getting too cold. They also wear these suits to keep from being crushed under the pressure.
Thermal protection - water at depth can be very cold.
Both astronauts and sea divers wear special sits because they travel into atmospheres that are strange to our bodies. Our bodies were not built to stand extremely deep waters and outer space. The suits protect them as they go about their business in those places.
There is no standard collective noun for mountaineers.Collective nouns are an informal part of language, any noun that suits the context can function as a collective noun; for example, a group of mountaineers, a party of mountaineers, an assemblage of mountaineers, etc.
Their suits-similar to divers.
Diver Suits
They have to where prussurized siuts because the gravity passed the atmosphere has gotten much more dense .
Deep sea divers wear diving suits in order to prevent their body by the harmful effects of maximum pressure at greater depth in seas and ocean.
Deep diving in the ocean is done very carefully in special suits and helmets. Pressure under the ocean is significant and can be immense by the time you are down a few hundred feet. Scuba diving is sometimes used commercially, but only to depths of about 120 feet. - Many large dockyards and navies employ 'clearance divers ' to repair items on the bottom of ships and work on the dockyard floor. These divers wear heavy canvas suits and large hard helmets, fed air by lines from the surface. They can work down to 300 feet deep or so. Research and oilfield divers can wear special hard suits that allow them to go down almost 1,000 ft. These divers often wear "Newt suits" made by the Canadian company Nuytco Research in Vancouver.
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Scuba divers do not wear heavy metal suits. Perhaps you are referring to the bulky looking Mark 5 dive gear with the large helmet and the breast plate that weighs 64 pounds. Suit weighs 25 lbs. Each shoe weighs 25 lbs. Oh, the weight belt the diver wears is 60 to 80 lbs. All this weight is needed to get the diver to sink from all the air inside the helmet.