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.
A $3 million gift from Macon and Joan Brock established the M. Foscue Brock Institute for Community and Global Health at EVMS. The ââdonation from Macon F. Brock Jr., co-founder and chairman of Dollar Tree Inc., and his wife, Joan, is one of the largest individual gifts ever made to EVMS.