Gr 8 Land, Soil, Water, Vegetation, and Wildlife Resources

What are the two main climatic factors responsible for soil formation?

• Time and soil texture

• Organic matter and time

• Soil texture and organic matter

• Temperature and rainfall

Which of the following is NOT a factor of soil formation?

• Time

• Soil texture

• Organic matter

• Water availability

Which method is most appropriate to check soil erosion on steep slopes?

• Shelter belts

• Mulching

• Terrace cultivation

• Contour ploughing

Which one of the following is NOT in favor of the conservation of nature?

• Switch off the bulb when not in use

• Close the tap immediately after using

• Dispose polypacks after shopping

• Plant more trees

True or False: Ganga-Brahmaputra plain of India is an overpopulated region.

• True

• False

True or False: Water availability per person in India is declining.

• True

• False

True or False: Rows of trees planted in the coastal areas to check the wind movement is called intercropping.

• True

• False

True or False: Human interference and changes of climate can maintain the ecosystem.

• True

• False

Which of the following is NOT a step taken by the government to conserve plants and animals?

• Establishment of national parks

• Creation of wildlife sanctuaries

• Implementation of biosphere reserves

• Promotion of deforestation

Which of the following is NOT a way to conserve water?

• Rainwater harvesting

• Efficient irrigation techniques

• Wasting water

• Reducing water usage