Molecular clocks starts counting mutations at the actual
time of divergence, and are used to estimate the time since a common ancestor.
It suggests that a lineage split occurred 700 000 years ago, 300 000 years earlier than first thought.
The answer is A hypothesis is tentative statement and A theory has a strong predictive power.
( I hope this is right :) )
Answer:
Soil structure is defined by the way individual particles of sand, silt, and clay are assembled. Single particles when assembled appear as larger particles. These are called aggregates.
Explanation:
Aggregation of soil particles can occur in different patterns, resulting in different soil structures. The circulation of water in the soil varies greatly according to structure, Therefore, it is important for you to know about the structure of the soil where you plan to build a fish-farm. Although you may not be able to assemble all this information yourself, the specialized technicians from the soil testing laboratory will be able to provide it after examining your undisturbed soil samples. They will be able to tell you if your soil has bad structure or good structure (pores/capillary canals, network, etc.). They will also be able to tell you about the degree of water circulation or permeability.
They acid effect it by making water undrinkable, and it can corrode steel and etc. Hope this helps
Answer:
Eight Neutrons
Explanation:
Water consists of 2 Hydrogen atoms and 1 Oxygen atom.
Oxygen contains 8 protons, 8 neutrons and 8 electrons.