Rick and lindsey were on the same airplane during an emergency landing. they met at the airport while waiting for another airplane. over the next 4 months they formed a long distance relationship. lindsey says her heart races whenever she sees rick. what theory best exemplifies this

The answer is "Physiological arousal".

Arousal begins in the cerebrum, where the Reticular Activation System interfaces the crude mind stem and the cortex and influences dozing waking advances. In arousal, it acting to build our attentiveness and resulting readiness and consideration. In excitement caused by a danger, the fight-or-flight response is activated.  

The endocrine framework stimulates different organs, specifically adrenaline, which expands oxygen and glucose stream, widens the understudies (so you can see better) and smothers non-pressing frameworks, for example, digestion and the immune system.

Arousal is spread through the Sympathetic Nervous System, with impacts, for example, expanding the pulse and breathing to empower physical activity and sweat to cool the body. It likewise has particular activities, for example, stimulating sexual arousal.

  b.

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

even though you have attached neither the chart nor the generalizations, i have located them online. the right answer is d, since they are asking you about a generalization. you can only infer from the chart that between 2008 and 2009 the number of employed workers decreased significantly (from over 115 millions to 107 millions approximately), which signals some type of economic crisis.