The correct answer is - True.
The temperatures of the ponds and lakes vary in accordance to the season. The ponds, being smaller and shallower, change temperatures much quicker than the lakes. During the summer, the temperature of their water is the highest, and as the autumn comes, the water slowly starts to get cooler, in winter it is either on the verge of getting frozen or it is getting frozen, and as the temperatures rise in spring, the water starts to build on temperature again.
A. overpopulation
b. underpopulation
c. migration
d. urbanization
e. unsustainable development
f. sustainable development
g. emigration
h. immigration
Answer:
Beneath 200 meters, ocean waters cools at a constant rate of 1°C per 100 meters depth.
Explanation:
The ocean water is with the same characteristics throughout all of the oceans. The differences come in differences in temperature, density, salinity, etc. When it comes to temperature, it is what influences the other characteristics, and it is what causes the movement of water in the oceans.
The movement of ocean water occurs because in some parts, the ocean water gets cold, while in others it gets warm. The cold water drops deeper and moves toward the less dense warmer water, and as it gradually warms up itself it rises, pushing the warm water in opposite direction. The water is mixing at the surface, but this is not the case below 200 meters of depth, where water mixing stops. This zone, where the water is not mixing, is known as the thermocline and exists as such throughout all of the oceans.
The mantle is between the core and the crust :)