what does yellow heart mean on snapchat. by Â· May 30, 2015. If youâve done an update on your snapchat, now in Your snapchat friends list will appear emojis located next to your friendâs avatar. Each of this emojis on Snapchat has its own meaning, one of them is yellow heart emoji. what does yellow heart mean on snapchat? Yellow heart or gold heart emoji on snapchat means that this guy or girl is your number one best friend. This kind of friend that keep snaps with you all the time, it means you and them are both keep sending snap picture and videos to each other.
Carbon dioxide is a greenhouse gas and traps heat in the atmosphere. Without it and other greenhouse gases, Earth would be a frozen world. But humans have burned so much fuel that there is about 30% more carbon dioxide in the air today than there was about 150 years ago, and Earth is becoming a warmer place.
â¦ Venus and Mars have about 95% carbon dioxide in their atmospheres, but the atmosphere of Venus is very much thicker. Earth has only a small amount of carbon dioxide, but it's enough to have a greenhouse effect.