There was no life on Earth for the first billion years because the atmosphere was not suitable for life. Earth's first atmosphere had lots of water vapor but had almost no oxygen. Later, frequent volcanic eruptions put several different gases into the air.
1. Two factors that are related to changes in Earth’s temperature are _______ and _______.
The sun and the atmosphere or it could also be the ocean.
2. The _______ is the measurement upon which all latitude parallel lines are measured.
Latitude
3. during winter, the northern hemisphere is tilted _______ from the sun.
Away
4. These _______ air masses are those that form at regions over higher latitudes and are indicated by a “P” on a
weather map.
polar latitudes
5. When you are near the equator, the winds you will experience are _______.
Light winds
The answer is (B. Medium) because it has to travel through the ear drum evenly without busting it. Hope this helped :)
Chloroplast Functions: Photosynthesis
