A. The rate of photosynthesis must be greater than the rate of respiration
The chronometer is a device to measure time in a period of time, therefore not a correct answer.
Answer:
analysis of magnetic and seismic patters
Explanation:
The proof for the long-doubted idea of drifting continents came in the form of analysis of magnetic and seismic patterns understanding of mountains glacial ice animal distributions analysis of magnetic and seismic patterns.
It simply means seismic and magnetic patterns which are measured through some designated machines are instrumental in the understanding of mountain glacial ice animal distribution.
Talc can be scratched with a fingernail