Recently, the problem of decrease in soil fertility has become more serious, pos- ing a threat to food safety of the country. The main cause is violation of technologies of rational arable farming, which leads to deterioration of the qualitative condition of soils, their degradation. Therefore,...
Name any one method by which water helps in the formaton of soil. 01:13 What is ozone hole ? Where was it first located ? 02:07 "The conservation of water is necesaary , even though there are vast r... 01:56 Main cause of soil erosion is ...
Soil pollution can be defined as the degradation in the quality of soil due to the contamination with toxic substances that alters the natural...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your toug...
Leave No Trace (LNT) is a concept designed to put conservation and preservation into practice when it comes to outdoor recreation. Though there are seven principles to LNT, it boils down to one big takeaway: Respect the environment. This means properly disposing of all waste, leaving flora an...
Boasting large swathes of rainforest and vibrant local wildlife, Malaysia’s beautiful island region of Sarawak is fast becoming a prime destination for travellers seeking adventure.
Place the bottle on its side, cut a lengthways rectangle out of its side, and then poke holes on the left- and right-hand sides of the rectangle so you can thread string through them. Tie a knot at the end of the string, fill with soil and throw in some seeds. Hang them up and...
Planting a tree may be one of the first ways you think of to Celebrate Earth Day so let us remind you why that’s such a wonderful idea: Trees fight climate change by absorbing carbon dioxide from the air and releasing oxygen. Trees prevent soil erosion and water runoff. ...
(a) Briefly explain how conservation tillage methods differ from conventional tillage. (b) How do they reduce erosion? (c) How are they able to help conserve water and energy? (d) Why do they lead to increased use of pesticides? What are the causes of soil erosion and how do they affe...
terraces(梯田)on the slope of hillside and mountainside.When the slope of a hillside is cut into"step",water carrying soil can not run straight down the terraces,which are used to slow down the speed of the flowing water containing much soil in it.In this way most of the soil in the ...
Memorial Trees provide a unique opportunity to educate future generations about a wide range of topics. These living memorials can be used to teach children and young adults about the importance of nature conservation and the role that trees play in maintaining a healthy ecosystem. By planting and...