MCQ
Density of human population is determined predominatly by
- ASocio-cultural factors
- BCold temperature of the environment
- CAvailability of plenty of water
- ✓Availability of good food
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Choose the correct option for $A, B, C, D$ and $E$

| List $I$ | List $II$ |
| $A$. Clostridium butylicum | $1$. Ethanol |
| $B$.Saccharomycescerevisiae | $II$. Streptokinase |
| $C$.Trichodermapolysporum | $III$. Butyric acid |
| $D$. Streptococcus sp. | $IV$.Cyclosporin-$A$ |
Choose the correct answer from the options given below: