The correct option is B 2. 4 and 5
Afforestation refers to the planting of trees in an area that is not previously forested, that is, where there was no previous tree cover.
Deforestation refers to cutting down trees permanently to clear forests to make land available for other uses.
Reforestation refers to the process of replanting trees over areas where trees have been damaged or destroyed.
Urbanisation refers to the population shift from rural to urban areas. Due to urbanisation, there will be more demand for land in the cities to accommodate the growing population. As a result, more and more forests will be cleared to make the land available for the construction of buildings, roads and other amenities.
Industrialisation refers to the development of industries in an area. Construction of industries requires a huge amount of land which is usually obtained by clearing of forests.
Therefore, deforestation (2), urbanisation (4) and industrialisation (5) do not help to conserve forests.