Answer:
plants did it
Explanation:
The development of organisms capable of photosynthesis caused Earth's atmospheric oxygen to increase. These organisms use carbon dioxide and water to form sugar and oxygen.
''A remnant or a trace of an organism, such as a skeleton or a leaf imprint embedded and preserved in the Earth's crust, are examples of fossil evidence.''
Fossils are left overs from the living organism, both parts of them and traces by them. Fossils are used by scientists to recreate the past of the Earth, the life on it, how did they lived, how did they look, the environment, whole ecosystems...
Answer and Explanation:
unfair Sentence Examples:
- Was he being unfair, taking the easy way out? ...
- It was unfair to string Josh along this way. ...
- It was unfair to string Josh along this way. ...
- It's unfair to keep them in the dark on this matter. ...
- "It's unfair to kevin to leave her alone with an infant," I answered.
<span>Soil compaction causes serious damage and can only be reversed very slowly and at significant cost. Compaction restricts root growth and reduces infiltration of water into soil. It can increase runoff, which may lead to greater flooding, increased erosion, and the transfer of potential pollutants (including nutrients and pesticides) to surface waters. As the air getting into the soil is also restricted, the biological activity and root growth is affected. This reduces the fertility of the soil and, more specifically, the availability of plant nutrients.</span>