Biology - MP Board of Secondary Education

XV
XVI
c- ihus ;ksX; fdUrq de yo.kh; ty A
l- 'kq) fdUrq ihus ;ksX; ugha A
n- iznwf"kr fdUrq thou ds vU; dkeksa ;ksX; ty A
Water from underground is –
a. Safe water for drinking.
b. Safe water for drinking with less salts.
c. Pure water but not for drinking.
d. Polluted water but can be used for other purposes.
SPM ds vuqlkj lcls iznwf"kr 'kgj gS &
v- nsgyh c- dkuiqj A
l- dydRrk n- mDr lHkh A
SPM based most polluted City is –
a. Delhi b. Kanpur.
c. Calcutta d. All three.
QksVksdsfedy feJ.k gS &
v- gkbMªksdkcZu] NO 2
c- NO 2 , SO 2 rFkk /kwy ds d.k A
l- gkbMªksdkcZu ] NO 2 , NO 3 rFkk vU; A
n- Dyksjhu ;kSfxd A
Photochamicals are mixture of –
XVII
a. Hydrocorbon + NO 2
b. NO 2 + SO 2 + Dust particlas.
c. Hydrocarbons + NO 2 + NO 3 and others.
d. Chlorine compounds.
vkstksu lrg {kj.k ds dkj.k gSa &
v- izkd`frd c- vizkd`frd
l- v rFkk c nksuksa n- mDr esa ls dksbZ ugha
The cause of deplition of Ozone layer is –