Rust of iron in rocks is a direct result of 
solar heating high speed fall from space Chemical energy The area was once underwater permineralization Temperature volcanic ejection chemical weathering
A B C D E F G H
When iron oxidizes it produces iron oxide, more commonly referred to as rust.
Chemical weathering of iron in rock causes rust
Rust of iron in rocks is a direct result of  (A) solar heating (B) high speed fall from space (C) Chemical energy (D) The area was once underwater (E) permineralization (F) Temperature (G) volcanic ejection (H) chemical weathering