The heating of the troposphere<span> is </span>caused<span> by convection currents. Convection currents are created when the sun warms the air currents at the planet's equator to a greater degree than it does at the planet's poles.
Hope this helps you, and happy studying~!
~Mistermistyeyed.</span>
Explanation: The water cycle is also known as the hydrological cycle. It describes how water moves on, above, or just below the surface of our planet. Water molecules move between various locations - such as rivers, oceans and the atmosphere - by specific processes. Water can change state. Nitrogen compounds found in cells include proteins. Nitrogen from the air is converted into soluble ions that plant roots can absorb. It forms part of nitrogen compounds in the plants, and is then passed from one organism to the next. It is returned to the atmosphere as nitrogen gas. This is the nitrogen cycle. The carbon-oxygen cycle is the process by which plants use carbon dioxide for respiration during photosynthesis and produce oxygen. During this process, carbon dioxide becomes part of the plant, and when the plant dies in a carbon-rich state it is possible for it to become a fossil fuel.
C human selection is the answer hope this helps
<em>it is in pounds that way to = 6613.8</em>
6613.8 is what i have figured.
Lubricants, Magnetic Levitation, Ball Bearing
