Answer:
d
Explanation:
Alfred Wegener in 1915 published 'The Origin of Continents and Oceans'. But geologists denounced his theory. Wegener's Continental drift is the theory that the different continents of the planet earth have moved over time causing them to shift positions. he thought all continents were once joined together before breaking up to different positions.
Part of the objections he faced was because he did not have much evidences to back up his theory.
d. giving them access to clean water
Answer: Troposphere
Explanation:
Clouds form in the troposphere, which is the layer of the atmosphere that is closest to Earth.
The process of cloud formation starts with warm, moist air that rises because warm air rises. This air cools as it rises. The temperature of the rising air drops until the air can no longer rise further and it expands into the troposphere. The water vapor in the air then condenses to form water droplets which form clouds.