Can you please describe one human activity that is thought to be a major contributor to global warming and explain how it may contribute to the problem.

Can you please describe one human activity that is thought to be a major contributor to global warming and explain how it may contribute to the problem.

Question

Which ecosystems are more productive, tropical rain forests or northern coniferous forests and why?

Biodiversity

What is biodiversity and how are humans impacting it? Is maintaining biodiversity essential for human sustainability? What can be done to maintain today's current biodiversity levels?

Opinion required - Peace Corps volunteer

Imagine that you have been sent as a Peace Corps volunteer to a poor African nation experiencing widespread hunger. How would you begin to address the needs of the people of that nation?

Phylum Identification

Please identify the phylum of attached plants. Thanks!