cleaning

A man cleans the teeth of a hippopotamus at a wild life reserve park in Guangzhou

Alex Lee/Reuters

A man cleans the teeth of a hippopotamus at a wild life reserve park in Guangzhou, Guangdong province in China.

Kashmiri women row a boat filled with weed after cleaning the Dal Lake on Earth Day, on the outskirts of Srinagar, India, Tuesday, April 22, 2014. The weed-clogged Dal Lake is central to Kashmirís tourist trade and efforts are being made to rescue the lake. In the past two decades the lake has shrunk by more than half, according to environmental study reports. (AP Photo/Dar Yasin)

Dar Yasin/AP

Kashmiri women row a boat filled with weeds after cleaning the Dal Lake on Earth Day, on the outskirts of Srinagar, India, Tuesday. The weed-clogged Dal Lake is central to Kashmir‘s tourist trade and efforts are being made to rescue the lake. In the past two decades the lake has shrunk by more than half, according to environmental study reports Read more

US President Obama in Senegal...epa03764580 A man cleans the red carpet leading to Air Force One in preparation for a departure ceremony for US President Barack Obama in Dakar, Senegal, 28 June 2013. Obama will visit South Africa and Tanzania next before concluding his tour of Africa.  EPA/TANYA BINDRA

Tanya Tindra/EPA

A man cleans the red carpet leading to Air Force One in preparation for a departure ceremony for US President Barack Obama in Dakar on Friday. Mr Obama will visit South Africa and Tanzania next before concluding his tour of Africa Read more

Workers clean the glass roof of the "New Century Global Centre" building, which opened to the public in Chengdu, southwest China's Sichuan province on June 28, 2013.  The center, claimed by Chinese officials to be "the world's largest standalone structure", measuring 500 metres in length and 400 metres in width, with 1.7 million square metres of floor space -- big enough to hold 20 Sydney Opera Houses -- is the latest symbol of China's economic boom.

AFP

Workers clean the glass roof of the New Century Global Centre building, which opened to the public in Chengdu, Sichuan province in southwest China on Friday.