With fossils, scientists can use carbon dating to determine the approximate age of whatever fossil they have.
Answer:
a cat's leg, and a human arm are considered homologous structures.
Explanation:
same joints
muscles are in the same places
Answer:
The main natural carbon sinks are plants, the ocean and soil. Plants grab carbon dioxide from the atmosphere to use in photosynthesis; some of this carbon is transferred to soil as plants die and decompose. The oceans are a major carbon storage system for carbon dioxide.
Explanation:
