Without a list to choose from I would say Hydrocarbons.
It tells you how many atoms it has, how many protons it contains and the number of electrons.
The surface area is greater with the crushed solid so more of the material is exposed to the gas allowing more reactions
ANSWER
The wavelength of the earthquake wave is 1000 m
EXPLANATION
From the question;
the speed,
frequency,
The relationship between wavelength,frequency and speed of a wave is given as
This implies that,
Hence the wavelength of the earthquake wave is