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.
1 Melinda Gates-co-founder of the Bill & Melinda Gates Foundation. 2  Michael Jackson-donated more than US$500 million to various foundations, and is noted as the entertainer who supported the most charity organisations by Guinness World Records. 3  He won numerous awards for his humanitarianism.