കാർബൺ ഡൈ ഓക്സൈഡിനെ അന്തരീക്ഷത്തിൽ നിന്നും നീക്കം ചെയ്തോ ഭൗമോപരിതലത്തിൽ എത്തുന്ന സൂര്യകിരണങ്ങൾ കുറച്ചുകൊണ്ടോ ഉള്ള സാങ്കേതിക വിദ്യ?
Aജിയോ എൻജിനീയറിങ്
Bക്ലിറ്റ് എൻജിനീയറിങ്
Cഇവയൊന്നുമല്ല
Dജനിതക എൻജിനീയറിങ്
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