The answer that makes the most since is A!
Con la creciente necesidad de antibióticos, hormonas de crecimiento, pesticidas y otros productos artificiales, los agricultores dependen cada vez más de estos proveedores.
It is called surface currents.
Until the early Proterozic there were only negligible amounts of free oxygen in the atmosphere
1 is true
2 is also true
3 is false
