The mantle is equivalent to 10 to 15 Earth masses and is rich in water, ammonia and methane. As is customary in planetary science, this mixture is referred to as icy even though it is a hot, dense fluid. This fluid, which has a high electrical conductivity, is sometimes called a waterammonia ocean. The mantle may consist of a layer of ionic water in which the water molecules break down into a soup of hydrogen and oxygen ions, and deeper down superionic water in which the oxygen crystallises but the hydrogen ions float around freely within the oxygen lattice. At a depth of 7000 km, the conditions may be such that methane decomposes into diamond crystals that rain downwards like hailstones. Very-high-pressure experiments at the Lawrence Livermore National Laboratory suggest that the base of the mantle may comprise an ocean of liquid carbon with floating solid 'diamonds'.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is Neptune's mantle rich in?
Ah, so.. water, ammonia and methane

North Carolinians enjoy outdoor recreation utilizing numerous local bike paths, 34 state parks, and 14 national parks. National Park Service units include the Appalachian National Scenic Trail, the Blue Ridge Parkway, Cape Hatteras National Seashore, Cape Lookout National Seashore, Carl Sandburg Home National Historic Site at Flat Rock, Fort Raleigh National Historic Site at Manteo, Great Smoky Mountains National Park, Guilford Courthouse National Military Park in Greensboro, Moores Creek National Battlefield near Currie in Pender County, the Overmountain Victory National Historic Trail, Old Salem National Historic Site in Winston-Salem, the Trail of Tears National Historic Trail, and Wright Brothers National Memorial in Kill Devil Hills. National Forests include Uwharrie National Forest in central North Carolina, Croatan National Forest in Eastern North Carolina, Pisgah National Forest in the northern mountains, and Nantahala National Forest in the southwestern part of the state.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Where is the Guilford Courthouse National Military Park?
Ah, so.. Greensboro

The nature and definition of matter - like other key concepts in science and philosophy - have occasioned much debate. Is there a single kind of matter (hyle) which everything is made of, or multiple kinds? Is matter a continuous substance capable of expressing multiple forms (hylomorphism), or a number of discrete, unchanging constituents (atomism)? Does it have intrinsic properties (substance theory), or is it lacking them (prima materia)?
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What is the opposite of atomism?
Ah, so..
unanswerable