Answer:
Freeeze-thaw weathering
Explanation:
Freeze- thaw weathering involves the breakdown of rock particles into smaller fragments through continuous fluctuations in the temperature of the water bodies. This form of weathering is common along coastlines. The water enters the rocks and then freezes when there is a decrease in temperature. The freezing expands the rock particles and aids frictions between the rock parts. This helps in the breakdown of the rocks to smaller particles.
It involves temperatures fluctuating around 0°C and is the dominant mechanical weathering process on coastlines
Answer:
D. the Amazon River
Explanation:
The Amazon River is officially the second longest river in the world, though there are some people that suggest that it is actually the longest one. This river though is the one that has by far the largest amount of water compared to any other river. The Amazon River is located in South America, and it forms the Amazon Basin where the largest tropical rainforest in the world is located, the Amazon rainforest. This river runs roughly in west-east direction, starting from the eastern slopes of the Andes and ending up in the Atlantic Ocean, with the majority of its flow being through the largest South American country, Brazil.
B. Built on drained and filled lake beds.
Mexico city was built on drained and filled lake beds. The following reasons were the motivations for altering the lake beds and draining it in order to build a city.
1. To reduce the risk of flooding.
2. To protect the city from being invaded.
3. To prevent diseases from spreading.
4. In order to mine the gold under these lake beds
Answer:
Continental crust is about 20 to 70 km thick and thus 70% of this submerged and oceanic crust being about 10 km thick is only 30 % submerged.
Explanation:
- As the hydrological crust is considered to be much denser than the oceanic crust hence at the subduction zones the crusts sink into the mantel and are beneath the lighter continental crust as the oceanic crust is much older than the continental crust. As the continental crust forms many layers and has a bulk composition and the average density is about 2.83 g/cm and has a thickness of about 7 to 10 km.
Answer:
The country was once known as the breadbasket of Europe, owing to its large agricultural industry.
Explanation:
