The rate of chemical weathering is controlled by such things as the temperature, the amount of rainfall and the surface area of the minerals which constitute the rocks. Rocks with a finer grain size have more surface area than coarse-grained rocks so are more susceptible to chemical weathering, like a volcanic rock compared to a granite, say. With higher temperatures and greater rainfall, chemical reactions in the rocks are facilitated and this is why, for example argillic (clay alteration) alteration is so well developed in the tropics (in El Salvador for example and also why the lateritic soils develop in countries like Indonesia and can contain economic amounts of nickel for exampl) . A factor which controls the rate of physical weathering could be the development of glaciers which transport rocks in their bed, which shapes these boulders and also scores the rocky surfaces these scrape over as the glacier moves. Alternate freezing and thawing in the spring time in the northern hemisphere can speed up the breakdown of the rock by cracking it or opening up pre-existing joints and faults.
and also the surface area of the minerals being attacked.
Answer: The united states is south of Canada. However Alaska is at the top of the main mass of Canada so one could say that it lies further north than most of it.
The second longest River in Europe is Volga in Russia.
The second longest River in Europe is the Danube, which flows though a number of capitals: Bratislava, Vienna, Budapest and Belgrade. It further flows to Romania, where it enters the sea.
The answer is: Danube
Answer:
The rainfall has more effect. where without rainfall there won't be changes in temperature because the if it's to cold there won't me vegetation like in polar region and if Temperature is to hot there won't be vegetation like in saraha desert. Therefore it is crucial for rainfalls more then Temperature.
Answer:
yes no yes is order of boxes in pic
