Elephant being washed by mahout in the waters of the holy River Ganges, Patna, Bihar, India, Asia

Women cleaning the steps outside a church in Lisbon, Portugal.

Woman washes her clothes in a stream by the road in Fuli Old Town, Xingping, China

Greasy hands of Caucasian man

Crude oil extraction from Monterey Shale near Bakersfield, McKittrick, Kern County, California, USA

Smiling woman cleaning tabletop with natural cleaning spray