Answer:
C) Photosynthetic bacteria, invertebrates, vertebrates, reptiles, amphibians, mammal.
Explanation:
- From looking at the above records of evolutionary life on earth the traces of living fossils and organisms that are evolved to the biogenic carbon signatures and the earliest known stromatolite fossils on earth the evidence of 3.7 billion year rocks taken from western Greenland.
- All show the occurrence of first life forms as photosynthetic bacteria and evolution of soil and oxygen in it took place then the invertebrates plat and animals appeared on land and oceans like the nematodes and arthropods, after which started to evolve like the vertebrates like the tetrapod the first fish with four limbs in 360 million years.
- After which reptiles and dinosaurs are the largest land reptiles evolved and then came the amphibian likes and then lead to the evolution of man and other mammals.
F ideal complete combustion occurs, fossil fuels release carbon dioxide gas and<span> water vapor as the main products. Complete combustion occurs when sufficient
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Rock types and elevation
Explanation:
Most boundaries between landscape regions are usually indicated by sharp changes in rock types and elevation.
Some times we move from a region dominated by igneous rocks to metamorphic terrains and so on.
- Abrupt lithological changes are usually evident when we cross landscape regions.
- Also the elevation between the two places can change.
- Most times when we move from the inland to the coastal areas, we notice that elevation decreases rapidly.
- Rock types and elevation are good indicators of changes in landscapes.
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According to the article, "Fundamental Concepts of Political Geography: An Introduction" describes two defining concepts of political geography which are territory and territoriality.
Territory is defined by Kevin R. Cox, the author, as, "spaces that are defended, contested, claimed against the claims of others".
Territoriality is defined by Cox as, "the activity of defending, controlling, excluding, or including a territory".
Answer:
Drought, improve the irrigation system
Explanation:
Because Africa is such a hot continent, lots of water gets dried up and evaporate. If we could have a better irrigation system and use rivers from around the continent, Africa could potentially start farming with the water they gain from the improved irrigation system.
