Management of Natural Resources Test - 12

The burning of fossilsfuels produces lots of CO₂that is one of the major green house gas. Thishas resulted in the increase in temperature on the earth called Global warming.

This diseasespreads from person to person by mosquito bites. When a mosquito bites aperson who has lymphatic filariasis, microscopic worms circulating in theperson's blood enter and infect the mosquito. People getlymphatic filariasis from the bite of an infected mosquito.

The evidence for theabsence of oxygen in the early atmosphere comes from the fact that the earlyorganisms were able to survive long enough and evolve into more viable forms(which were able to exist).

Then, how did we getoxygen in the atmosphere?

Early living organismslike blue-green algae could carry out the process of photosynthesis andrelease oxygen gas.

Ozone layer isimportant because it prevents too many harmful ultra violet rays from reachingearth. Ultra violet rays have the capability to destroy plants and animals andcan cause skin cancer, cataracts to human beings. Existence of life on earth ispossible only because of the presence of ozone layer around the earth

Factory dischargepipes are know as point sources of pollution because they come from asingle source. Point sources threaten water qual-ity and are subject to federalregulation under the Clean Water Act

None of the optionsare incorrect because of the below mentioned interpretation of each option.

In comparison to allother arable crops sugarcane requires high levels of water and also has one ofthe longest growing periods.

Most of the airpollution that is caused is due to soil erosion. The soil particles carried inthe air lead to dust. The air might also contain chemicals from agriculturallands. This soil dust in the air often leads to respiratory problems and skininfections in humans causing environment pollution

Soil pollution allowsemission of relatively large quantities of nitrogen via denitrification,volatilization of ammonia, and the decomposition of organic materials in thesoil. As a result, this releases sulfur compounds and sulfur dioxides into theatmosphere, causing acid rain.

'All of these ' option1is correct because option  2.Pollen is found naturally in the air, humanactivities and choices can increase the amount of pollen in our air, and inturn, can cause people to have more severe allergic reactions.

Option 3.Volcaniceruptions release large quantities of greenhouse gases and other aerosols intothe atmosphere which causes pollution

Option 4. Theburning of fossil fuels to produce energy also releases significant amounts ofcarbon dioxide and other greenhouse gases into the environment

DDT is an acronym thatstands for dichloro-diphenyl-trichloro-ethane; it is a type of pesticide thathelps prevent the spread of disease by insects

Aluminum is a durableand sustainable metal: Two-thirds of the aluminum ever produced is still in usetoday.

Afforestation is the establishment of a forest orstand of trees in an area where there was no previous tree cover.

Forests can retain excess rainwater, prevent extreme run offs and reduce the damagefrom flooding

As of today, thereare 166 national parks in India.

A national park is areserved area meant for preserving not only wildlife, but also the naturalvegetation and the natural beauty.

Early organisms areknown as cyanobacteria, or blue-green algae. These microbes conductphotosynthesis: using sunshine, water and carbon dioxide to produce carbohydratesand, yes, oxygen. 

In fact, all theplants on Earth incorporate symbiotic cyanobacteria (known as chloroplasts) todo their photosynthesis of early days where no oxygen is present to this day.

Nandankanan ZoologicalPark is a 400-hectare(990-acre) zoo and botanical garden in Orissa,India. Established in 1960, it was opened to the public in 1979 and becamethe first zoo in India to join (WAZA) in 2009.

Carboxyhemoglobin is astable complex of carbon monoxide and hemoglobin (Hb)that forms in red blood cells upon contact with carbon monoxide(CO). 

The Chipko Andolan -or the ‘Hug the Trees Movement’ was the result of a grassroot level effort ofthe local people to protect the forests. The movement originated

from an incident in aremote village called Reni in Garhwal in the Himalayas during the early 1970s.The local people hugged the tress and prevented the contractors from fellingthe trees.