Explain giving reasons the cause of appearance of peaks 'a' and 'b' in the graph shown below:

Explain giving reasons that pyramid of energy is always upright.

Explain giving reasons the existence of placental wolf and Tasmanian wolf sharing the same habitat.

Explain, giving reasons, which one of the following pairs exhibits the property indicated : Sc^(3+) or Cr^(3+) exhibits paramagnetism .

Explain giving reasons: Tartaric acid is an important consituent of baking powder used in making cakes.

Explain by giving reason : Arylamines (aniline) are weaker bases than alkylamines (ethylamine) and ammonia.

In an experimenal to study the dependance of current on potential difference across a resistor, a student obtained graph s shown below: Calculate the value of resistance of the resistor.

Which one of the following function best represents the graphs as shown below?