Teaching BPSC बिहार प्राथमिक (1 to 5) शिक्षक भर्ती 4.0 Mock Test Environmental Studies Animal Shelter
Sand Martins excavate tunnels to make their nests. They nest in ______ and make tunnels on exposed faces of riverbanks, quarries and cliffs.
1
isolated area
2
colonies
3
In fields
4
More than one of the above
5
None of the above