Can someone please answer these 2 for me :)) I WILL GIVE BRAINLIST

In an energy pyramid, which level has the most available energy?

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

An excess of lithium oxide undergoes a synthesis reaction with water to produce lithium hydroxide li2o+h2o→2lioh if 1.05 g of water reacted, what is the theoretical yield of lithium hydroxide? a) 5.83 x 10–2 g lioh b) 1.17 x 10–1 g lioh c) 2.79 x 100 g lioh d) 1.40 x 100 g lioh