Question: Wani masanin kimiyya ya shirya yin wani aiki don gano tasirin ruwan sama akan samuwar koguna. An zaɓi wani yanki na dutse a matsayin wurin da za a gudanar da binciken. Duk bayan wane lokaci ya kamata masanin kimiyyar ya auna canje-canje a cikin dutsen?
Options:
Kullum.
Kowane sati.
kwanne wata
kowace shekara
Answer: D