Ah is gold and Rh is rhodium and Os is osmium and Ir iridium
1. rancidification fixation of water is CHEMICAL CHANGE
2. Tearing of paper is PHYSICAL CHANGE
3. Rusting if iron is CHEMICAL CHANGE
4. Electrolysis of water is CHEMICAL CHANGE
Pretty sure it's the Precambrian.
Explanation:
Solar energy is the radiant energy emmitted from the Sun. It is the electromagnetic energy
71% of the earth is water and the 29% is continents and islands.
