When did Lincoln declare that Thanksgiving would be celebrated on the last Thursday of November?

Match each description to the appropriate biome. tropical savanna desert tropical rain forest taiga tundra has sparse vegetation and very cold temperatures located near the equator and contains trees that form dense canopy layers is very hot and dry, and has plants that need little water has cold winters, heavy snowfall and is dominated by conifers has warm temperatures and is dominated by grasses

When analyzing tree rings, what do scientists assume a thin ring indicates?

When plants use sunlight to make food, the energy of sunlight is