Ohio’s superintendent says the state won’t withhold funding to penalize schools for students opting out of standardized tests this year.
Wetlands produce four grams of carbon per square meter per day, or 15,000 pounds of plant material a year – twice that of a forest.
Soil particles flow into a wetland, can be stirred up, or can sink to the bottom
Plants with roots in the water can grow up through the water, or can grow as algae, which can break off and float to the surface
Phosphorus is essential in wetlands, but too much is dangerous
Wetlands can do and be many things, including: reduce flooding, filter pollutants, be incredibly productive, and act as a nature preserve
Energy is transferred from the sun, plants, and animals. The food web in a wetland offers many choices for animals.
Bottomland hardwood forests, or swamps, receive most of its water from river floods, which effects what types of plants can grow in them.
Through examining ice cores, scientists can observe and record past climate conditions without having lived in those conditions. Watch the video and download teacher’s guide.
By examining past trends in carbon dioxide and methane levels as well as temperatures, scientists can predict future trends through ice core samples. Watch the video and download teacher’s guide.
The amount of nitrogen in rivers has increased over the years, but wetlands can filter out some of it