Answer:
3 materials
Explanation:
The jacket and trousers worn by a firefighter have to be constructed from materials that will withstand intense heat. Aramid fiber is a synthetic fiber that is highly regarded for its strength and heat resistance. Nomex is the trade name for arimid fiber clothing, and this type of material is used in the construction of a firefighter jacket and trousers. Nomex is often combined with Kevlar to increase the strength of the material.
Answer:
A. The cells on the shaded side of the plant will grow longer, causing the opposite side of the plant to grow toward the window.
Explanation:
just did the assignment c:
They are constantly adapting to different conditions <span />
Peter keeps his mind active by completing a crossword puzzle each day. This may delay the onset of memory decline such as Alzheimer’s disease.
Participation in cognitively stimulating activities may delay onset of the memory decline via its effect on improving cognitive reserve. It has been shown by recent studies that doing a crossword puzzle was associated with delayed onset of memory decline in persons who developed dementia.
Answer: A). Fusion
In star fusions of atoms heavier than hydrogen like helium takes place in the core of the star, at the core the temperature and density of gases is the greatest . It also depends upon the surface area of the star the larger the star the more surface area it will have and larger core will facilitate more profound fusion of gases, this will result in production of heavier elements. The fusion produces heavier element than parent elements. This will form more massive star which results in hot core which can produce heavier elements by fusion. Energy is released at each fusion stage. When the stars becomes massive they exhibit changes like their cores contract and limit in size and temperature increases, such stars are called red giants. Red giants have mass three times greater than the sun. Oxygen is the atom produce in these red giants after fusion of helium and carbon. If the mass of the star becomes greater than sun after fusion, it results in formation of heavier element like iron. When the core becomes iron in a star it explodes and forms supernova. This explosion creates nuclei which are heavier than iron.
