Are oxides which have both acidic and basic properties

Are oxides which have both acidic and basic properties

Hard water and soft water

Hard water and soft water

1 the normal,incident ray and the reflected ray all lie on the same plain
2 the angle of incidence is equal to the angle of reflection

Water 25% of the total volume of soil
air 25% of the total volume of soil
organic materials 5% of the total volume of soil
minerals 45% of the total volume of soil

Is the process in which a weak river diverts the course of another river
features
1 elbow
2 misfit river
3 pirate river
4 wind gap
5 point of incision

1 low life expectancy
2 high illeteracy rate
3 inadequate provision of social services
4 low level of science and technology
5 low savings
6 high dependent rate

1 to make laws
2 to oversee the government work
3 to make a follow up on government expenditure
4 to discuss matters tabled before it
5 to discuss the government budget