What is the difference between a timeline and a calendar

Which of the following most accurately describes china today

Began during presidency of john q. adams tariff of 1828 and 1832 states’ rights versus federal authority john c. calhoun’s ‘proclamation to the people of south carolina’ concluded during the presidency of andrew jackson is which event are these characteristics describing

Match your vocabulary word to its definition. 1. hectare reduced ability of the soil to support life 2. land degradation of spain and portugal 3. mangrove the pressing of soil particles closer together reducing the amount of air between particles 4. salinization 2.5 acres 5. junta group that controls the government 6. iberian small tropical tree 7. compaction higher than normal salt content in the soil