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.
In April 2012, Bing committed to join the Giving Pledge, set up by Bill Gates and Warren Buffett, to donate the majority of his wealth to charity over the course of his lifetime. This article from Inside Philanthropy gives an overview of some charities Steve Bing has been involved with.