EARTH SCIENCE
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Science Bowl Question

📅 NSB 2011🎓 HS🔄 Round 9#️⃣ Q5❓ Toss-Up📝 Multiple Choice

Tree growth is often very stunted and gnarly at the tree line of high mountains in North America. Known as Krummholz formations, this is primarily caused by:

W) winds
X) subsidence
Y) lowered atmospheric pressure
Z) low sunlight levels
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