A Gateway drug is one which one precedes the use of illegal or illicit drugs.
Gateway drug its means Habit forming drug that, while not itself addictive, may lead to the use of other addictive drugs.
<span>"many believe that alcohol and cigarettes are gateway drugs that increase the risk of subsequent involvement with illegal drugs"
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Gateway drugs it is a noun.
Answer:
The most recent eon is subdivided into three eras and eleven periods.
Explanation:
The geological time scale has been constructed so that it can help in better research and understanding of the past, as well as making it easier to distinguish the past and its characteristics at a certain time. There are larger and smaller divisions in the geologic time scale, with the eon being the largest unit, followed by era, and then period.
The most recent eon is the Paherozoic, starting from 542 million years ago and still going on. It is subdivided into three eras and eleven periods so far. The three eras are:
- Paleozoic
- Mesozoic
- Cenozoic
The eleven periods are:
- Cambrian
- Ordovician
- Silurian
- Devonian
- Carboniferous
- Permian
- Triassic
- Jurassic
- Cretaceous
- Tertiary
- Quaternary
Answer:
Inner diameter: It is the diameter obtained by subtracting the thickness of the wall from the outer diameter of the object. It is the nominal diameter
While,
Drift diameter: It is the diameter of an object (pipe or bolt) which is the guaranteed diameter, less than the nominal diameter. It is usually 3.2 mm less than the nominal diameter
Explanation:
Inner diameter: It is the diameter obtained by subtracting the thickness of the wall from the outer diameter of the object. It is the nominal diameter
While,
Drift diameter: It is the diameter of an object (pipe or bolt) which is the guaranteed diameter, less than the nominal diameter. It is usually 3.2 mm less than the nominal diameter
The correct answer is - B. Rhyolitic.
The rhyolitic magma has a trademark signature to be the magma type that causes the most catastrophic, powerful, explosive volcanic eruptions. This is due to the composition of the magma. This type of magma is very high in silica content, which in turn makes it very viscous, and because it is very viscous, the high amount of gasses that it contains remain trapped in it, the pressure is building up inside of it, so when it reaches the surface it is highly explosive.
Due to the Atlantic Jet Stream, cold water is carried from the Antarctic all the way down to the Caribbean and it turns into warmer water, then that said water is carried up back north towards the Antarctic, carrying that warm water with it, warming the surrounding air as it moves northward.
