Is coal a sedimentary rock?

Answered by Kurt Edwards, Geologist and GIS Analyst, INL ESER Program he short answer is yes, coal is a sedimentary rock. Coal is formed mainly from plant material that accumulates in a swampy environment. These plants that become coal, lived before and during the time of the dinosaurs. When the plants died they would sink…

What makes a foggy day?

Answered by Nicole Peterson, Meteorologist, National Weather Service-Pocatello Office Fog is simply a cloud, but on the ground. In order for fog to form, there needs to be moisture in the air. Fog typically forms overnight when the air near the ground cools, and disappears in the morning when the sun warms up the air.…

Since deciduous trees lose their leaves in the winter and their ability to perform photosynthesis, do they have to store food to stay alive?

Question answered by Kristin Kaser, Plant Ecologist, INL ESER Program Yes, deciduous trees must store food to stay alive in the winter. During the spring, deciduous trees begin creating food through photosynthesis; they are simultaneously preparing for their dormant period where they store extra nutrients as starches in underground structures like roots. As the growing…

We are currently studying clouds and rain. We were wondering what percentage of a cloud is actually water and what percentage of a rain cloud is dust and or other things?

Answered by Dennis Finn, Research Meteorologist, NOAA, Idaho Falls Most water in the atmosphere is in the form of water vapor, a gas. Warm air holds more water vapor than cold air. For a climate like Idaho Falls, water vapor content is typically about 0.4-0.5% in the summer and less than half of that during…