How do you tell if a pine tree is dead?

What is the adaptation of the corpse flower? How long does it typically take for weed killer to effectively kill unwanted plants? How can I prevent or treat leaf curl in tomato plants? How can I effectively address and prevent circular dead spots in my lawn? What words are associated with trees? How can I successfully plant and care for baby apple trees in my garden? What non-living things are present in the house? What is the difference between actual and visual weight as it relates to balance? Why is my strawberry plant not growing as expected? How can I grow arugula from seeds successfully? How can I safely and effectively cut a tall tree? What vegetables produce on their own without being replanted each year out being replanted? What do indigenous Australians use Gymea lily roots for? What does vetch look like? Can you prune a barberry in the autumn? How can I effectively compost corn cobs to reduce waste and create nutrient-rich soil for my garden? Why are the leaves of my fiddle leaf fig turning yellow? Would October be the harvest month? What is the common name of Rheo plant in Bengal? What kind of leaf does a poplar tree have?