B.) a population density map and c.) a political boundary map
Answer:
Greenhouse effect
Explanation:
Greenhouse effect is the trapping of the sun's warmth in a planet's lower atmosphere, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface.
The first one is a the second one is a i think the third one is a and the last one is b
D. North and South piglets.
Explanation: The absolute location does not change, such as the position of a place or the longitude and latitude of a place. The relative location changes depending on the person who informs of the location. On the map of fiction, the element that suggests the relative location is to the North and the South of the piglets. Directions such as north, south, east, and west of great help to explain that when a place is in relation to another.
