1. Change in color
2. Formation of bubbles
3. Formation of a precipitate
4. Begins to make an odor
Answer:
through ecological science
Explanation:
Ecological scientists study organism-environment interactions across ... Plant life clothes much of Earth's land surface, providing structure to ecosystems (e.g., ... Figure 1: A flock of Ibis visits a flooded rice field in California.
When an atom gains an electron it becomes a negatively charged ion. When an atom looses an electron it becomes positively charged because the number of positively charged protons.
Hope this helps
I think the answer would be steel and iron.
