B3 2021 Schaller

1. the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization
3. this air mass forms in low-latitude areas and are moderately warm
5. the process by which heat or electricity is directly transmitted through a substance when there is a difference in temperature
10. a weather front formed during the process of cyclogenesis
13. This extends upwards from the tropopause to about 50 km.
14. Less than 1% of air is made up of this liquid
15. The region above the stratosphere is called the
17. this air mass forms near the equator
19. the boundary of an advancing mass of warm air, in particular the leading edge of the warm sector of a low-pressure system.
20. is commonly known as laughing gas
21. the leading edge of a cooler mass of air at ground level that replaces a warmer mass of air
24. the region of the atmosphere above the mesosphere
25. the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink

2. This is the lowest part of the atmosphere - the part we live in.
4. a body of air with horizontally uniform temperature, humidity, and pressure.
6. the weather conditions prevailing in an area in general or over a long period.
7. characterized by cold air near the surface
8. the state of the atmosphere at a place and time as regards heat, dryness, sunshine, wind, rain, etc.
9. a weather front or transition zone between two air masses, when neither air mass is advancing into the other at a speed
11. 21% of this makes up the air
12. a layer in the earth's stratosphere at an altitude of about 6.2 miles containing a high concentration of ozone
16. man-made gases that can stay in the atmosphere for centuries
18. this air mass forms in colder regions of the
22. 78% of air is made up of this
23. gas that is found in small quantities in Earth's atmosphere.is the simplest hydrocarbon, consisting of one carbon atom and four hydrogen atoms.