Science News Archive - March 23, 2008
SEATTLE _ The odds of growing up aren't good for baby sand dollars. Smaller than the head of a pin, the larvae drift in the ocean _ easy prey for anything with a mouth.
Martha Stewart Living Omnimedia HOW SHOULD I clean my tarnished silver jewelry? Tarnish on silver is caused when the metal reacts with sulfur, a chemical found in the air, as well as in wool and foods such as onions and eggs. Handling silver after touching these items can cause it to tarnish.
Text of report by South African newspaper Sunday Times website on 23 March [Report by Bongani Mthethwa & Monica Laganparsad: "Cities Must Act Fast to Repair Damage"] Pollution has reached crisis proportions in South Africa's rivers and at least 142 of them now pose an extreme health hazard.