PLEASE HELP It has been estimated that in this way the world's seagrass meadows
can capture up to 83 million metric tonnes of carbon each year. While
seagrasses occupy only 0.1% of the total ocean floor, they are estimated
to be responsible for up to 11% of the organic carbon buried in the ocean.
Calculate the total annual amount of carbon captured by the World Ocean.

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential

Difference between series and parallel circuits

An athlete swings a ball, connected to the end of a chain, in a horizontal circle. the athlete is able to rotate the ball at the rate of 8.13 rev/s when the length of the chain is 0.600 m. when he increases the length to 0.900 m, he is able to rotate the ball only 6.04 rev/s. (a) which rate of rotation gives the greater speed for the ball? 6.04 rev/s 8.13 rev/s (b) what is the centripetal acceleration of the ball at 8.13 rev/s? m/s2 (c) what is the centripetal acceleration at 6.04 rev/s? m/s2