Answer:
Due to average population density.
Explanation:
The population density of Canada is the average population density of the whole Canada whereas the population density of city of Montreal refers to the population density of one city only. There are some regions in the country usually in the rural areas where population density is very low while on the other hand, the population density of cities are very high due to more job opportunities so that's why the population density of Canada is lower as compared to the city of Montreal.
The geologist time scale was formed when scientists studied rock layers and index fossils worldwide. With this information, they placed Earth's rocks in order by relative age. Later, radioactive dating helped determine the exact age of the divisons in the geologic time scale.
This scale is organized by the 4.6 billion years of earth's history into sections based on important changes seen in the geologic record. The largest intervals are called eons, with each eon containing many millions of years.
In precambarian time the processes that affect Earth's surface have lessened the erosion on the surface. Earth was being hit by meteorites every second. Now there is water erosion and there wasn't back then. The surface changes have lessened over time.
Organs join together to form a system. Such as the respiratory system
The best and most correct answer among the choices provided by the question is the fourth choice "<span>Measure the amount of energy in the phytoplankton and the amount of light entering the aquarium. Then measure the amount of energy in the phytoplankton after exposure to the light and determine the difference." </span><span>I hope my answer has come to your help. God bless and have a nice day ahead!</span>
