Question
A well with 20 m inside diameter is dug 10 m deep. Soil
taken out of it has been evenly spread all around it to a width of 30 m to form an embankment. Find the height of the embankment.ÂSolution
Volume of the soil dug out = πr2h ⟹( (22)/(7) x 10 x 10 x 10) = 3,142.85m³. Area of embankment = Area of embankment with well - Area of well = ( x 40 x 40) - ( x 10 x 10 ) = 4,714 m² Height of embankment = (Volume)/(Area) = (3142.85)/(4714.3) = (2)/(3)m.
Match the following terms with their definitions in the context of environmental science:
Consider the following Statements.
(1) Ozone depletion refers to the phenomenon of reductions in the amount of ozone in the stratosphere.
...
Match the following influential figures to their contributions to the environmental movement:
What are effective methods to reduce air pollution?
(A) Increased use of fossil fuels
(B) Afforestation
(C) Carpooling
(D) U...
Match the following environmental treaties with their primary focus:
What significant event marked a turning point in global environmental policy in the 20th century?
The headquarters of the International Renewable Energy Agency (IRENA) is in which city?
Which of the following is correct related to the Forest (Conservation) Act, 1980?
(A) Was enacted to prevent deforestation
(B) Promotes th...
Identify the correct statements about the Chipko Movement:
1. It began in the 1970s in the Garhwal Himalayas.
2. The primary method of pro...
What term is used to describe water that is safe and palatable for human consumption?
Relevant for Exams:
