Based on the map, why do you think engineers chose that is the mass of panama as location for a canal?

The us and canadian governments are doing all of the following to combat environmental problems except a. encouraging the use of public transportation b. enacting clean water policies c. requiring emissions testing d. limiting animal populations in some regions

Put these ecosystems in order of least biodiversity to most biodiversity 1. mediterranean forest 2. indonesian rain forest 3. arctic ocean

What is most likely the effect of unrestricted hunting of gray wolves on the food web of the region