1. Physical Weathering. In physical weathering the rocks are broken down into smaller pieces, but the chemical composition of the rock remains the same. Temperature Change. Hot temperatures can give rise to thermal expansion in rocks and cool temperatures can cause rocks to contract.
Buffett Donates $2.8 Billion, Breaks Personal Giving Record. Warren Buffett has bested his own personal philanthropy record once again, donating $2.8 billion to the Bill and Melinda Gates Foundation and several other charities as part of his annual giving pledge. The gifts given Monday top last yearâs $2.6 billion donation.
Bill Gates Wonât Leave Fortune To Kids. Bill Gates, 58, and his wife Melinda, 49, got married in 1994 and have three children together: Jennifer, 18, Rory, 16, and Phoebe, 11. Thanks to Billâs many business ventures, including being the co-founder of Microsoft, he is worth a small fortune. No, I take that back.