Glass windows allow light in, but trap the heat inside. this describes a greenhouse effect convection global warming conduction

The correct answer is green house effect.

Explanation:

Green house effect: It is a process in which the infrared rays coming from the sun gets absorbed or re-emitted in the atmosphere. In this way the heat is trapped in the atmosphere.

In the given problem, glass windows allow light in, but trap the heat inside. This effect is due to the green house effect.

Convection: It is a process in which there is an actual movement of heat particle.

Conduction: It is a process in which there is no actual movement of the particle. It transfers heat directly from one place to another.

Global warming: The gradual increase in the overall temperature of earth's atmosphere that causes change in the climate. It is the result of the green house effect.

Therefore, glass windows allow light in, but trap the heat inside. This describes green house effect.

the entire statement is true and correct.  

there's no diagram, nothing is illustrated, and no question is asked.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards