A crucible of 5g weighed 10g after filling with fresh soil. it is then heated in an oven at 100°C for 1 hour. After cooling in a desiccator, the weight was 8g.The percentage of water in the soil is
The highest level of ecological organization is the
The mangrove swamp in Nigeria is restricted to the
A biotic factor which affects the distribution and abundance of organisms in a terrestrial habitat is
In which of the following Nigeria states can mountain vegetation be found?