When scientists found identical patterns on either side of the mid-ocean ridge, what did they deduce? What happens to this water? On less steep slopes, by ploughing and cultivating in strips along the contour, soil runoff can be reduced significantly. Between 1997 and 1999 the net increase in the forest cover of the country was 3,896 sq. Contour farming is recommended on lands with gentle slopes. Exam Instructions: Choose your answers to the questions and click 'Next' to see the next set of questions. What was the accepted theory about the Earth's continents during Wegener's time? Yes, it could travel down to the groundwater table, but what if the ground was already wet and saturated, as after a day of heavy rainfall. The continuous cycling of water from one reservoir to another has a name.
Answer: Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere, Ionosphere. Answer: A crop that i9 not a food crop; it is grown for sale to manufacturers who convert it into products. Food webs are a One kind of food b Not related to food chains at all c Inter-connected arrangement of food chains d Linear arrangement of food chains 29. The evidence of this type of erosion can be seen in the heavy quantity of silt that is deposited elsewhere. Soil is formed from disintegration of rocks by the action of running water and weathering. Pyramid of number is given by a Haeckel b Odum c Elton d Tansely 30.
It looks like the potential evapotranspiration is 24 to 36 inches each year. The outermost shell of a rocky earth, the crust, is specified on the basis of its chemistry and mineralogy. Protected Areas: For in situ Conservation of bio-diversity of the country, 87 National Parks and 485 Wildlife Sanctuaries have been created so far. The desertification of soil in Rajasthan is attributed to deforestation and cattle grazing. When you have completed the practice exam, a green submit button will appear. In this way, new man-made pests are created. Which of the following is an example of impact of development activities on the Hydrosphere? Answer: Steep sided rock ribs, up to 20 feet high and 30 to 120 feet in width, separated from one another by corridors cut in the desert floor by wind abrasion.
Simple technology involving rock embankments bunds constructed along contour lines for water and soil conservation greatly succeeded. There are three main layers of the Earth. In a dust storm, huge quantity of dust is raised high and transported to great distances. Tree plantations in short blocks are called wind breaks. Many cases of pesticide poisioning do occur almost every day in the country and many such cases go unreported. However, the management of pesticide risks in non-human species is even less studied excepting in veterinary medicine.
Click it to see your results. Tendency of pollutants to become concentrated in successive trophic levels is known as: a Biomagnification b Biorhythm c Bioremediation d Biopiracy 41. Answer: Fountain like intermittent warm water coming out from the underground is called Geyser. Most of the Earth is covered with water which makes it unique and enables life to exist. It keeps going down until it hits the groundwater.
Answers all these questions correctly and find out everything there is to know about the plate tectonics. The darker zone in lakes where light penetration is negligible is called the: a Euphotic zone b Littoral zone c Limnetic zone d Benthic zone 38. For Denver, average annual rainfall is only 12 inches, but the potential for evapotranspiration is 2 to 3 times as much, some 24 to 36 inches per year. In India, the worst examples of soil degradation have been observed in Gujarat, Rajasthan and Bihar. Answer: In feet or meters above the sea level.
Have you ever noticed that sometimes you can see water in a stream even if it hasn't rained and there hasn't been any surface water runoff for for a long time. It has been defined by Hutchinson 1970 as that part of the earth in which life exists the envelope of life. Where would that water eventually end up if it kept running down a sloping surface?. Answer: Melanesia, Micronesia and Polynesia. These are: a Sewage And Domestic Wastes: In villages, only few houses have septic tanks for treatment of sewage and domestic wastes.
Answer: About 4600 million years. Some scientists divide the core into the outer and inner core. The environment which has been modified by human activities is called a Natural environment b Anthropogenic environment c Modem environment d Urban environment 15. Learn with multiple choice question: what is major cause of income in developing countries, for online certificate courses with options agriculture, mining, business, industry to test online e-learning skills for formative assessment exam prep and job's interview questions with answers key. Because the rainfall is less than the potential for evapotranspiration, most or all rainfall will return to the atmosphere.