Crawford Lake
1. Location-
Ontario in Canada
2. The lake's
bottom sediments have provided evidence for beginning of Anthropogenic epoch
(present geological time scale during which earth's ecosystem has degraded due
to human activities especially after Industrial revolution)
3. The lake bottom
sediments contained burned fossil fuels, exploded nuclear weapons, plastic and
fertilizers dumped in the water bodies.
Hathnikund barrage – Yamuna River
1. Located in
Yamuna Nagar, Haryana.
2. Heavy rains in
Northern India led authorities to release water from Haryana's storage system -
Hathnikund barrage into Yamuna resulting in inundation of Delhi's low-lying
areas.
3. The 360m long
barrage controls the water coming from Himachal Pradesh and prevents flooding
in surrounding villages.
4. It is one of the 2 barrages on the river Yamuna, the other being Dakpathar in Dehradun.
5. The small reservoir created by the barrage supports 31 waterbird species by acting as a wetland.
