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qwhat is the greenhouse effectsome gases like carbon dioxide methane nitrous oxide prevent the escape of heat from the earths surface by trapping it
an automobile manufacturer needs to build a data warehouse to store and analyze data about repairs of vehicles among other information the date of
q list any three human activities which would lead to an increase in the carbon dioxide content of airi burning of fuels in various processes like
new england university maintains a data warehouse that stores information about students courses and instructors members of the universitys board of
qname two biologically important compounds that contain both oxygen and nitrogentwo biologically important compounds that contain both oxygen and
q what are the different states in which water is found during the water cycleduring the water cycle water is found in solid state snow ice etc
what are the methods of preventing or reducing soil erosionthe methods of preventing or reducing soil erosion arei prevention of deforestationii
qwhat is soil erosionthe blowing away or washing away of land surface by wind or water is known as soil
qhow is soil formedsoil is formed by breaking down of rocks at or near the surface of the earth through various physical chemical and biological
q do you know of any activity which may be polluting this water sourceanswer the discharge of waste water from homes industries hospitals etc into
q what is the major source of fresh water in the citytownvillage where you liveanswer river is a major source of fresh
why do organisms need waterorganisms need water for the following reasonsi all cellular processes need water as a medium usually the reactions that
list any three human activities that you think would lead to air pollutionthe following three human activities would lead to air pollutioni burning
qhow are clouds formedduring day time on being heated a large amount of water evaporates from various water bodies and goes into the air a part of
every precipitate will be collected using a hirsch funnel make definite that the plastic frit disc is firmly snapped in place in your focus
what causes windsan uneven heating of the earths surface causes winds on being heated air becomes lighter and rises up as a result a region of low
according to a gallup poll 51 of us women prefer to have a job outside of the homewhat is the chance that a survey of 200 women would find that 45 or
qhow does the atmosphere act as a blanketthe atmosphere acts as a blanket by performing the following functionsa it keeps the average temperature of
how is our atmosphere different from the atmospheres on venus and marsearths atmosphere is different from those of venus and mars this difference
your factory has a machine for drilling holes in a sheet metal part the mean diameter of the hole is 10mm with a standard deviation of 01mmwhat
4 two hosts one on east host a and one on the west coast host b of the usa are exchanging data suppose a is sending a large file to b the file is
2 suppose a file of 35000 characters is to be sent over a line at 55000bps1 calculate the overhead in bits and time using asynchronous
1 data is to be transmitted over public switched telephone network pstn using 8 levels per signaling elements if the bandwidth is 3000 hz deduce the
a 3 km pipe starts from point a end at point bpopulation 3000 peopleq 300 ldaypersonroughness cast ion pipelength of the pipe 3kmcase 1from a to
write an assembly program to make a microwaveneed1 the microwave has a clock hhmmss ampm and the user should be able to alter the clock