Which of the following is an unsuitable habitat for algae?

If $\tan \theta + \tan \left(\theta + \frac{\pi}{3}\right) + \tan \left(\theta + \frac{2\pi}{3}\right) = 3$,then which of the following is equal to $1$?

What does the given diagram of enzyme action represent?

The electronic configuration of the phosphide ion $(P^{3-})$ is similar to that of:

Which of the following fiber crops is grown in the largest area in India?

The lines represented by $ax^2 + 2hxy + by^2 = 0$ are perpendicular to each other,if ........