Answer:
Scientists have discovered what they say could be fossils of some of the earliest living organisms on Earth. They are represented by tiny filaments, knobs and tubes in Canadian rocks dated to be up to 4.28 billion years old.
Explanation:
C.) Food moves up from roots
In order from least to most dense, it must be: C, B, A and D. Seawater with high temperature causes an object to float, while seawater with low temperature sinks or is denser than high temperature. Salinity is also a factor to determine density; the higher the salinity, the denser the water. In terms of depth, it seems that sample D is the deepest part while sample A is the shallowest. This is determined because temperature drops significantly with depth.
One positive impact of this type of power plant on the environment is that I creates no pollution, unlike other types of power plants like nuclear and fossil fuel.
One negative impact of this type of power plant on the environment is that it could harm fish. As the water hits the turbine, fish that it pulls along also hut the turbine, potentially killing them.
hope this helps !
