The correct answer is: a) Abundant rainfall and hilly terrain.
Small-scale hydropower projects are particularly suitable for Meghalaya due to its abundant rainfall and hilly terrain. The state receives an average annual rainfall of over 12,000 mm, which is more than any other state in India. This high rainfall is ideal for hydropower generation, as it provides a steady source of water to drive turbines. The state’s hilly terrain also makes it ideal for hydropower projects, as there are many rivers and streams that can be dammed to create reservoirs.
The other options are not as suitable for hydropower generation in Meghalaya. The state does have large coal reserves, but these are not as accessible as those in other parts of India. The state also receives high solar radiation, but this is not as reliable a source of energy as rainfall. The state does not have strong wind currents, which makes wind power an unviable option.
In conclusion, small-scale hydropower projects are particularly suitable for Meghalaya due to its abundant rainfall and hilly terrain. These factors provide a steady source of water and a suitable location for hydropower projects.