The first european power to establish a trading post in india was a. france b. portugal c. england d. spain

The colonial era in India began in 1502, when the Portuguese Empire established the first European trading centre at Kollam, Kerala. In 1505 King Manuel I of Portugal appointed Dom Francisco de Almeida as the first Portuguese viceroy in India, followed in 1509 by Dom Afonso de Albuquerque. so the answer is B. Portugal 

Mantle convection is the process that drives plate tectonics. the theory of plate tectonics states that the crust is divided into plates that float on the semi molten mantle below. the circular motion of the magma as it slowly rises and falls or move though convection cells drags the plates along causing them to move. the heat source in the lamp would represent the earth's core. the core is the source of energy that drives convection in the mantle. the lava represents molten magma under the earth's surface. if the lava lamp had floating pieces they would move as the circular motion of the lava in the lamp as it rises and falls would move them along the surface. these floating pieces would represent pieces of the earth's crust.