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Which of the following statements are true regarding cold and hot deserts: (a) Hot deserts have high temperature while cold deserts have low temperature. (b) hot deserts are battered by sun and are sandy. Cold deserts have ice and snow covered ground. (c) Hot deserts are red or orange while cold deserts are gray. (d) Hot and cold deserts experience a significant seasonal effect.
Statements : Some hills are rivers. Some rivers are deserts. All deserts are roads.

Conclusions :
I. Some roads are rivers.
II. Some roads are hills.
III. Some deserts are hills.
The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph. P: Intense heating of the ground creates convection currents. Q: Dust storms are caused by strong winds that travel over dry, arid land with little vegetation and pick up tiny particles such as sand, dust and other debris. R: The air over the ground becomes hot and rises and the vacuum it creates is filled by cooler winds, resulting in a storm. S: In arid areas, the storm picks up sand and loose soil, which are light and thus travel fast with it.
If Dust is called Air, Air is called Fire, Fire is called Water, Water is called Colour, Colour is called Rain and Rain is called Dust, where do Fish live ?
Consider the following statements and choose the correct answer:
1. Average density of soil is 2.65 gms. per ml.
2. The spaces present between soil particles in a given volume of soil are called pore spaces
3. Porosity of the soil decreases with the increase in the percentage of organic matter in the soil
4. Macro-pore spaces have little water holding capacity and allow free movement of moisture and air in the soil under normal condition
In the following question below some statements are given followed by some conclusions. Taking the given statements to be true even if they seem to be at variance from commonly known facts, read all the conclusions and then decide which of the given conclusions logically follows the given statements. Statements: All smug is dust All dust is sand No sand is wet Conclusion: I. Some smug can be wet II. No wet is dust
To measure and control dust particulates in the foundry, dry dust technologies are mostly preferred than the wet dust technologies.
A teacher is trying to introduce her class VII students to different kinds of soil. She begins by introducing the names of three kinds of soil i.e. sandy soils, clayey soil and loamy soil. She explains the properties of each soil in term of its particulate nature. She then demonstrates one sample of each kind of soil and shows the students the difference in percolation rate of an examples. How would you evaluate this approach from an inquiry oriented perspective?
Rahul covered 2 km against the wind in t hours and then covered 6 km with the wind in t hrs, the speed of the wind was 3 kmph. Find Rahul’s speed where there was no wind (in kmph)
Consider the following pairs: Pollutant Effect on Human Health 1.Dust of Coal Black Lung Disease 2.Textile Dust Byssinosis 3.Silica Dust Silicosis 4.Arsenic Death of RBCs Which of the above-given pair/s is/are correct?