名词解释题土培 soil culture
名词解释题
土培 soil culture
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相关考题：
According to the text．which of the following is NOT true?A．Soil forms from weathered rock on the earth surface．B．The deeper layer of soil is darker in colour than t}le surface soil．C．Air pollution is partially responsible for acid soil．D．Groundwater tends to carry away nutrients for plant growth．
According to the text. which of the following is NOT true?A. Soil forms from weathered rock on the earth surface.B. The deeper layer of soil is darker in colour than the surface soil.C. Air pollution is partially responsible for acid soil.D. Groundwater tends to carry away nutrients for plant growth.
Maoris have adopted many aspects of（）and more and more New Zealanders now share in the rich heritage of（）AAmerican culture/Asian cultureBWestern culture/Asian cultureCAmerican culture/Maori cultureDWestern culture/Maori culture
单选题Maoris have adopted many aspects of（）and more and more New Zealanders now share in the rich heritage of（）AAmerican culture/Asian cultureBWestern culture/Asian cultureCAmerican culture/Maori cultureDWestern culture/Maori culture
单选题Why does land become desert after all trees are cut down?ABecause nothing remains on land except floods.BBecause there are no longer trees to keep the rain and protect the top-soil.CBecause too much rain sinks in and washes away the top-soil.DBecause roots of the trees break up the soil.
单选题ATo transport water to high places.BTo provide air conditioning.CTo fertilize the soil.DTo adjust the soil temperature.