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.
BREAKING DOWN 'Philanthropy'. Billionaire Microsoft mogul Bill Gates, along with his wife, Melinda, established the Bill and Melinda Gates Foundation to support global development and global health programs. Another example is the Ford Foundation, established by the son of Ford Motor Company founder Henry Ford.