A property of fine-grained clastic rocks is that they are easily eroded.
<h3>Why are these rocks easily eroded?</h3>
Fine-grained clastic rocks have small fragments and grains which make them lighter than other rocks.
As a result they are more susceptible to weathering which then allows them to be easily carried off by water or air.
In conclusion, option A is correct.
Find out more on weathering at brainly.com/question/12734041.
Answer:
not sure, but most likely answer b: variation's in the shape earth's orbit
Explanation:
The tundra is a biome on the Earth that covers approximately 20% of its land mass, and it is almost exclusively located in the Northern Hemisphere. It is an environment that helps in the regulation of the CO2 in the atmosphere, and it is one of the biggest natural CO2 sinks. The living organisms in the tundra, are using the CO2 for their needs, thus removing parts of it from the atmosphere, and when they die, because the tundra is cold, and the decomposition is very slow, most of the CO2 remains trapped, and doesn't go into the atmosphere.
Unfortunately, the global warming is slowly changing the tundra, and prolongs the summer periods, thus reducing the permafrost period of the year, so the decomposition of the living organisms is getting quicker, and also bigger percentage of the CO2 from them gets to the atmosphere.
Precipitation occurs more over the land.
