The nucleosynthesis have occurred progressively producing heavier and heavier elements with the following processes in sequence :
Big Bang Nucleosynthesis— Fusion in stars—Fusion in Supernova explosion
Big Bang Nucleosynthesis— Fusion in stars—Fusion in Supernova explosion option is correct.
Nucleosynthesis—the cosmic production of the chemical elements—proceeds in three sequential astrophysical settings. The first minutes after the Big Bang were hot and dense enough for primordial fusion to build hydrogen, helium-4, and trace lithium and deuterium; heavier nuclei could not form because the universe expanded past the required density and temperature within about twenty minutes.
Stars formed later and, through the proton-proton chain, CNO cycle, and successive burning stages (He, C, Ne, O, Si), synthesised elements up to iron in their cores. Beyond iron, fusion becomes endothermic, so the heaviest nuclei (via the r-process and rp-process) are forged during the extreme neutron flux of core-collapse supernova explosions and neutron-star mergers.
The other sequences invert this well-established order or invoke non-existent steps like “Big Bang fission” and “electroweak formation” of nuclei, which have no astrophysical basis.
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Important Questions from Mixed Topic (MH-SET)
.................... is a client server application that identifies each host on the internet with a unique user-friendly name.
Every OS has a ................ or .......... which primarily resides in the main memory of the computer to perform some of the basic functions of the OS.
(i) Kernel
(ii) Interface
(iii) Nucleus
(iv) Compiler
Codes:
Which of the following are referred to as low level language?
(i) Machine language
(ii) Assembly language
(iii) High level language
(iv) Natural language
Codes:
Match the following:
List I List II (a) New York Public Library (i) Shelv AR (b) Miami University Augmented Research Group (ii) Smart library (c) Oula University Library (iii) Wolf Walk (d) North Carolina State University (iv) Find the future Codes:
Which part of the QR code represents the encoded data?
