Energy is required for the sugar and oxygen to reach their transition state.
Answer:
adding a catalyst
Explanation:
catalysts accelerate the speed of chemical reactions
Answer:
Universe
Explanation:
This should go to physics category
The big bang theory is derived from the observed universe, and the microwave background signal that arrived to earth...
Answer:
B) meteorite sample
Explanation:
The age of the solar system, derived from the study of meteorites (thought to be the oldest accessible material around) is near 5 billion years; that of the Earth is taken as 4.6 billion years. The oldest rocks on Earth are dated as 3.8 billion years.
1) if a plant cell then a cell wall
