NA MA 54 Ar Which metal has valency 3 among above? b. Which metal is more active between 'O' and 'S'? why? c. What change in atomic size is found when we move from sodium to rightward and whe effect does it cause on the reactivity of elements? 23. Sketch a neat diagram of neuron and label the parts, which carry impulse to the cell body or exton and away from the cyton. Give an example showing interrelation betweer nervous system and glandular system. 24. proper implementation of Kyoto protocal would help to cope the globel warming9, how​

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? a. the balloons both rise. the cold balloon is larger than the warm balloon. b. the balloons rise at the same rate. both balloons are the same size. c. the warm balloon expands and rises. the cold balloon shrinks and sinks. d. the cold balloon expands and rises. the warm balloon shrinks and sinks.

In pqr m< p=60 m< q= 30 and m

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?