alleryପୃଥିବୀର କେନ୍ଦ୍ରସ୍ଥଳରେ ଥିବା ଅନ୍ତର୍ତମ ସ୍ତରଟି କେଉଁଟି?
Aମହାସାଗରୀୟ ଭୂତ୍ୱକ
Bତରଳ ମାଣ୍ଟଲ
Cକଠିନ ଅନ୍ତଃ-କେନ୍ଦ୍ର
Dବାହ୍ୟ ତରଳ କେନ୍ଦ୍ର
Answer & Solution
Correct answer: C. କଠିନ ଅନ୍ତଃ-କେନ୍ଦ୍ର
ପୃଥିବୀର ସର୍ବାନ୍ତର ଅଞ୍ଚଳ ହେଉଛି ଲୁହା ଏବଂ ନିକେଲରେ ଗଠିତ ଏକ ଘନ କଠିନ ଗୋଲକ, ଯାହା ଅନ୍ତଃ-କେନ୍ଦ୍ର (inner core) ଭାବରେ ଜଣାଶୁଣା।
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