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.
Categories of speech that are given lesser or no protection by the First Amendment include obscenity, fraud, speech integral to illegal conduct, speech that incites imminent lawless action, speech that violates intellectual property law, true threats, and commercial.
Learned behavior
This is because instinct drives them to eat and find food, but they have to learn that a certain feeder is always out and available
