Pablo has trouble sleeping at night due to his fear that his apartment will be burglarized. he buys an alarm system and installs new locks on all his windows and doors. according to maslow's hierarchy of needs, pablo is trying to meet his:

Marlow’s hierarchy of needs identifies 5 human needs:

1.      Biological and physiological

2.      Safety

3.      Belongingness and love

4.      Esteem

5.      Self-actualization 

Pablo’s trouble sleeping at night due to his fear of having his apartment burglarized falls meets his safety need. Safety need justified his actions of buying an alarm system and installing new locks on all his windows and doors. 

  b.

there are isolated pockets of farming, generally around rivers and oases, which are used for irrigation.

the density would be a smaller number.