Q4. Household laundry detergents are categorised into biological detergents and nonbiological detergents.Figure 4.1 below shows alabel from abiological laundry detergent Figure 4.1 (a) Based on your understanding on enzymatic function, explain why biological laundry detergents are better than nonbiological detergents. Your answer should not be more than 180 words . (10 marks } (b) Sarah washed her purple scarf made up of silk with the biological laundry detergent. Explain what could happen to her scarf. Your answer should not be more than 150 words. (7 marks )