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 October 2006, the Bill & Melinda Gates Foundation was split into two entities: the Bill & Melinda Gates Foundation Trust, which manages the endowment assets and the Bill & Melinda Gates Foundation, which ... conducts all operations and grantmaking work, and it is the entity from which all grants are made.