Questions

Woodland tribes lived in wigwams and longhouses. Wigwams are round, wooden-framed structures, covered in bark. Only one familylived in a wigwam. Longhouses are made the same way as wigwams except they are rectangular, instead of round. They have a long hallway with rooms on both sides. Several related families shared a longhouse.

Longhouse Commonly lived in by entire Native American families in the Eastern Territories pre-colonization.

The olfactory system is the only system in which the receptors send their signal directly to the higher brain and bypass the thalamus, which normally acts as a filter for the processes of the lower brain.

The Periyar Sanctuary covers an area of 777sq km. It was established in 1949. Elephants , Gaurs, leopards, solth bear, sambhars, barking deer, wild dogs, wild boars, black Nilgiri langur and water birds can be seen in this sanctuary.

The four bonds of carbon tetrachloride (CCl4) are polar, but the molecule is nonpolar because the bond polarity is cancelled by the symmetric tetrahedral shape. Hence, making the net dipole as zero and molecule as non-polar.

When other atoms substitute for some of the Cl atoms, the symmetry is broken and the molecule becomes polar.