What is the frequency of a photon of wavelength 35 centimeters (cm)? 857 MHz
105 MHz
2.86 Hz
1.16 Hz

to remove pollution or contamination from the environment

Explanation:

Environment remediation is a process of removal of the contaminants and pollutants from the environment and replenishing it. It is deals with the eradication of the contaminants from sources like soil, water and air. This will help in controlling the pollution. This process will ensure that the environment retain it's purity and integrity.