Wind pollination is common in . . . . . . .

The charge on colloidal particles is due to

If the lines $2x - 3y = 5$ and $3x - 4y = 7$ are two diameters of a circle of radius $7$,then the equation of the circle is

If the position vectors of the vertices of a triangle are $2 \hat{i}-\hat{j}+\hat{k}$, $\hat{i}-3 \hat{j}-5 \hat{k}$, and $3 \hat{i}-4 \hat{j}-4 \hat{k}$, then the triangle is

When work is done on a body by an external force,its

Which fibrous mineral substance can withstand red-hot temperatures without being damaged?