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.
Most Communities doesn't benefited from National Water act of 1998 because;
- political issues
- Corruption
- poor management
- poor development
<h3>What is the National Water Act?</h3>
The National Water Act serves as act in 1998 that protect and conserve the use of water resources.
Therefore, National Water Act control Rivers, dams, however not all communities benefited because of poor management.
Learn more about National Water Act at;
brainly.com/question/14284975
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