Suggest ways to conserve minerals:
Reducing waste in the process of mining
Recycling of minerals
Both a and b
Putting restrictions on its use.
Which is found mainly in the tropical and subtropical areas?
Bauxite
Ilmenite
Haematite
Galena
The minerals deposited in the form of layers in the rocks are called:
sand dunes
mountains
beds
rock soil
Which one of the following cells convert sunlight directly into electricity?
Photo cell
Photogenic
Photovoltaic
Photochemistry
Give an example of shafts:
Surface mining
Deep bores
Off - shore drilling
Space shafts
Petroleum is referred to as 'black gold' because:
It is black in colour
It is yellow in colour
It has immense value
It is used in making jewellery
Which one of the following is not an igneous rock?
Basalt
Dolerite
Granite
Limestone
Which one of the following is important besides coal for iron industry?
Mercury
Silica
Aluminium
The energy of modern world is:
Hydro electricity
Thermal electricity
Atomic energy
Tidal energy
Which continent is the largest producer of iron?
Asia
Europe
North America
Australia
