भू-विज्ञान
bhoovijnan (aangrezi:Geology) vah vijnan hai jisamean prithvi, prithvi ka nirman karane vale shailoan tatha shailoan ke vikas ki prakriyaoan ka adhyayan kiya jata hai. isake aantargat prithvi sanbandhi anekanek vishay a jate haian, jinamean se ek mukhy prakaran un kriyaoan ki vivechana haian jo prachin kal se dharatal par hoti chali a rahi haian evan jinake phalasvaroop bhooprishth ka roop nirutar parivartit hota rahata hai, yadyapi usaki gati sadharanataya bahut hi mand hoti hai. any prakaranoan mean prithvi ki ayu, bhoogarbh, jvalamukhi kri da, bhoosanchalan, bhookanp aur parvat nirman, mahadeshiy visthapan, bhaumikiy kal mean jalavayu parivartan tatha himanadi yug vishesh ullekhaniy haian. bhoovijnan mean prithvi ki utpatti, sanrachana tatha usake sanghatan evan shailoan dvara vyakt usake itihas ki vivechana ki jati hai. yah vijnan un prakramoan par bhi prakash dalata hai jinase shailoan mean parivartan ate rahate haian. isamean abhinav jivoan ke sath pragaitihasik jivoan ka sanbandh tatha unaki utpatti aur unake vikas ka adhyayan bhi sammilit hai. isake aantargat prithvi ke sanghatak padarthoan, un par kriyashil shaktiyoan tatha unase utpann sanrachanaoan, bhoopatal ki shailoan ke vitaran, prithvi ke itihas adi ke adhyayan ko sammilit kiya jata hai.
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