With an occluded front,

grab a sweater because it's going to be cool
put on a tank top because it's warming up
get out of the area because a tornado is coming

grab a sweater because it's going to be cool

A front is a zone of transition between two air masses. It is mainly responsible for the type of weather condition exhibiting in an area.  An occluded front forms when a cold air mass moves over a warm air mass. It is evident that cold air masses are faster than the warm air masses because of low density of air. The cold air masses are prominent over the hot air masses, hence this results in the winter conditions.

Therefore, grab a sweater because it's going to be cool is the correct option with the occluded front. As, the occluded front likely to bring winter conditions.    

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.