Answer:
C they are moving away from each other
Explanation:
Ozone can be formed when a mixture of O2 and NO2 is exposed to bright light. Such mixtures occur in the polluted air of large cities. The concentration of NO2 in air is usually very low, because N2 and O2 do not react at normal temperatures. However, in the hot, reacting gases inside the cylinders of internal combustion engines, nitrogen and oxygen can react.
Answer:
The energy released from food was once energy from the sun that was captured by plants in the chemical process that forms plant matter (from air and water). Food provides animals with the materials they need for body repair and growth and the energy they need to maintain body warmth and for motion.
Search Results<span>Based on temperature changes, the Earth's atmosphere is divided into four layers, as shown in Figure 3. These layers are the troposphere, stratosphere, meso sphere, and thermosphere. Although these words might sound complicated, the name of each layer gives you clues about its features.</span>
Trace fossils provide us with indirect evidence of life in the past, such as the footprints, tracks, burrows, borings, and feces left behind by animals, rather than the preserved remains of the body of the actual animal itself. so i would say B.