Use the four population pyramids above to answer the question. Which country's population is significantly decreasing? Sb
O Brazil
O Japan
O Afghanistan
O US

Based on the results of this study, what questions remain unanswered? how can these questions guide future research

Ausable water source is one that can be used by humans for drinking or agriculture. identify the water reservoirs as usable or unusable based on their current state. oceans rivers glaciers freshwater lakes groundwater

Fill in the blank with the correct sphere label. a: ⇒ geosphere b: ⇒ biosphere c: ⇒ hydrosphere