Types of adaptations needed for organisms to live in a river are sunlight or lack of, the amount of bacteria living in the water, the temprature of the water, and the enviromemt that surrounds and is in the water.
I believe that your answer is #4, it seems to be the only logical one. :)
The correct answer is The rotation of the Earth
Explanation:
Besides orbiting around the Sun which leads to seasons, Earth is all the time rotation on its axis, this movement occurs eastward and the movement is completed every 24 hours, due to this, a day is considered to last 24 hours. Besides this, due to the rotation of Earth different zones or areas in the planet are directly exposed to the sunlight during different periods, which leads to daytime and nighttime, considering daytime as the period in which a zone is illuminated by the Sun while in the nighttime the zone remains in the dark. Additionally, this phenomenon also explains why daytime and nighttime do not occur at the same time on all Earth. Thus, it is the rotation of the Earth the one that causes Earth to experience daytime and nighttime.
<span>that the patterns of polarity matched up on both sides is the answer </span>
Desert
pavement is created as a result of deflation. Desert
pavement is formed by the process of deflation. Normally, small and fine
fragments are carried by wind since they are light in weight as the larger
compact particles are left behind. What remains is rocky, compact, and not
easily eroded, and it is what is commonly referred to as the desert pavement.