D. Chloroplast is only found in plant cells not in animal cells
The answer is 'carbon dating'. The technique depends on a form of radioactive carbon which is formed by the interaction between cosmic rays and atmospheric carbon. This radioactive carbon, as a constituent of carbon dioxide, is taken up by plants through photosynthesis. This radioactive carbon can then move up the food chain. Once an animal dies, <span>it stops exchanging carbon with its environment, and the amount of this radioactive carbon begins to decrease through decay according to a specific half life. So by measuring the amount of radioactive carbon in animal remains, scientists can estimate the age when the animal died. The half life of radioactive carbon is approximately</span><span> 5,730 years, so the oldest dates that can be reliably measured by this process are around 50,000 years ago.</span>
The atmosphere interacts with the hydrosphere through the water cycle.
Water cycle:
• Evaporation of water (from the earth’s surface-due to the heat from the sun,
• Cold Trap- a point reached by the water vapor when it gets higher into the atmosphere (this point is substantially colder than the air below it)
• Condensation of water- the water vapor turns into water droplets as it cools down, they connect to form clouds
• Precipitation of the watee- water falls in the form of which is usually rain.
The water flows into rivers, streams, and fall directly into the ocean, where the cycle can restart.
Answer:
Water is strange in the case that very few compounds are liquid in room temperature without carbon. Also, very little solids float on their liquid forms. It is able to dissolve or dissociate many particles. It is a what is known as a Universal Solvent. Try explain how water is so good at dissolving things that water has minerals stuck with it almost all the time. try dissolving things into it and comparing it to other things.
The number of chromosomes per cell<span> is cut in half through the separation of homologous </span>chromosome<span> in a diploid </span>cell<span>. </span>