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Ecosystems, carbon cycle, and natural resources

Horizontales
The study of Earth's physical structure, history, and processes.
Atmospheric gas that contributes to the greenhouse effect by absorbing infrared radiation.
A substance of economic value that cannot be readily replenished.
A hierarchical series of organisms, each dependent on the next as a source of food.
Birth, growth, and death depends on gaining a share of limited resources.
Verticales
A community of interacting organisms and their physical environment.
A substance of economic value that can be replenished in the same or less amount of time it took to collect.
Which organism on a food chain goes on the bottom level of the trophic pyramid?
What percent of energy makes it to the next trophic level?
Series of processes by which carbon moves through the environment.