400 Level Biological Sciences Department exam questions and detailed answers. Download the answers in document format. Correct, detailed, and straightforward answers.
Questions:
Write detailed notes on any three of the following:
i. Role of micro-organisms in the Soil
ii. Humification
iii. Soil Atmosphere
iv. Soil Water
![A quantity of hot water at 100ºC is added to 400g of water at 10ºC until the temperature of the mixture is 60ºC. Calculate the mass of the hot water added. [Specific heat capacity of water =4200JKg-1 K-1] A quantity of hot water at 100ºC is added to 400g of water at 10ºC until the temperature of the mixture is 60ºC. Calculate the mass of the hot water added. [Specific heat capacity of water =4200JKg-1 K-1]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png)

