Answer:
The embryological data have advantage over DNA evidence.
Explanation:
- Embryology is the study of earliest phase of any organism i.e development and formation of embryos.
- The embryological data is very important because it give the proper information about the mechanisms that have both normal and abnormal development.
- Similarly the embryological data also helps in studying the evolution over the generations.
- The overall organization, its process of development can be properly known by embryology over DNA evidence.
Beneath Florida are
structures made up mostly with carbonaceous rock such as limestone and
dolostone overlaid with mixtures of sand and clay. When groundwater passes
through this structure, the carbonates are slowly dissolved and thus creating sinkholes.
<span>For centuries, sinkholes have
found popular use as disposal sites for various forms of waste.</span>
Answer:
4 billion years
Explanation:
Scientists have found the oldest known rocks on Earth. They are 4.28 billion years old, making them 250 million years more ancient than any previously discovered rocks. Earth formed about 4.6 billion years ago from a disk of gas and dust circling the sun.
Explanation:
<em>The greenhouse effect is a process that occurs when gases in Earth's atmosphere trap the Sun's heat.</em> Gases in the atmosphere such as CO2, water vapor, methane, nitrous oxide, ozone and some artificial chemicals such as chlorofluorocarbons absorb and re-radiate the sun's energy maintaining the Earth's temperature at around 33 degrees Celcius, this happens especially with infrared light that wants to go back to space. This infrared heat spreads back to the land and oceans. This absorption does not happen with visible light, the radiation at 400-800nm easily passes through the atmosphere.
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