Acertain group of plants have spongy roots, which allow the exchange of gases to and from the atmosphere. what are the group of plants and the type of roots known as?

Which process can increase the rate of greenhouse gas emissions into the atmosphere in response to a decrease in albedo

Me with these questions if you’re it sure don’t answer

Recent research by marine biologists suggests that bottlenose dolphins have names for themselves. scientists played sounds they had identified as the names of particular dolphins, putting them through a synthesizer so that they did not sound like the voices of particular dolphins. the researchers found that dolphins would respond to the names of other dolphins that they were related to or associated with, but they ignored the names of strangers. this discovery suggests a much greater degree of self-awareness in aquatic mammals than was previously suspected. if this research holds up, what does it suggest about dolphins?