Biological weathering is caused by living organisms, such as microbes, animals, and plants. Water, oxygen, and rocks are nonliving things (though water and rocks may be capable of weathering), and only plant roots fits the definition of biological weathering. So the correct answer for #1 is A.
Frost wedging occurs when the little water content in rock freezes, expanding and forcing the rock apart. Eventually, enough freeze-melt cycles causes the rock to break apart little by little. This is due to ice's density being less than that of water, meaning that it is because water expands when frozen. So the answer to #2 is A.
<span>Sunni Ali is these is MOST associated with the Songhai Empire. Sonni Ali established Gao as the capital of the empire, although a Songhai state had existed in and around Gao since the 11th century. Other important cities in the empire were Timbuktu and Djenné, conquered in 1468 and 1475 respectively, where urban-centered trade flourished. Initially, the empire was ruled by the Sonni dynasty (c. 1464–1493), but it was later replaced by the Askiya dynasty (1493–1591).</span>
Answer:
It is accepted by a few scientists.
Answer btw I am new can be friend
Answer:
\sqrt{2}
Explanation: signed, birb.
<span>These stars tend to be much larger and much hotter than our sun. This is because they have more hydrogen with which to fuse into helium, and this increased level of fuel keeps the overall temperature more elevated than our own star. Over time, the temperature, brightness, and size will decrease as the amount of fuel decreases.</span>
