The Vedic rishis had forewarned the (a) to protect the environment. They mentioned (b) need to perform the daily yajnas (c) protecting ecology. 'Dharamshastras' prohibited man (d) disturbing the biodiversity (e) ecosystem as it (f) against the tenets of religion and considered a sinful activity. 'Atharva Veda' has meticulously dealt (g) the various aspects (h) the environment and showed more concern for ecology. the gap filling​