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.
Business: Berkshire Hathaway. One of the inspiration for most of the investors around the world, Warren Buffet is fourth among the top 10. He is an investor and currently chairman and CEO of Berkshire Hathaway. He became the wealthiest person in the world in 2008 by displacing Bill Gates from the top spot.