- The rare parasitic and poisonous weed causing threatening
to the genetic treasure of the Simlipal Reserve Forest is
(a) 3DUWKHQLXP (b) (LFKKRUQLD
(c) (XSDWRULXP (d) /DQWDQD.
- The pie chart given below depicts the contribution of
different gases to greenhouse
effect. Identify A, B, C, D and select
the correct statement regarding
them.
(a) C combines with haemoglobin
thereby decreasing its oxygen
carrying capacity leading to
hypoxia in body tissue.
(b) B increases the gaseous exchange in blood.
(c) A is used in air conditioners and industrial refrigerators
as coolants.
(d) D is produced during the process of respiration and
volcanic eruption.
- In arctic regions, methane is coming out of earth’s interior at
many places called
(a) methane hole (b) methane flux
(c) methane chimneys (d) methane run off.
- Select the incorrect option about ecosan toilets.
(a) Dry composting toilets
(b) No water is required
(c) Excreta is converted into a natural fertiliser
(d) Found mainly in many parts of Karnataka and Sri Lanka
- Chlorofluorocarbon has the maximum ozone depleting
potential or ODP due to release of
(a) active chlorine (b) active bromine
(c) active fluorine (d) hydrogen fluoride.
- Testicular atrophy occurs due to harmful effect of
(a) zinc (b) cobalt (c) lead (d) cadmium.
- Primary sludge is not used for
(a) biogas generation (b) composting
(c) combustion (d) secondary treatment.
- Which of the following statements is/are incorrect?
(i) Deforestation leads to increase in atmospheric CO 2
content by releasing carbon stored in organic matter.
(ii) There is decrease in amount of rainfall but increase in
primary productivity due to deforestation.
(iii) Forest cover has been removed by 30% in tropics and
10% in temperate areas.
(iv) Desertification is a product of very less rainfall and soil
erosion.
(a) (i) and (iv) only (b) (iii) and (i) only
(c) (ii) and (iii) only (d) (iii) only
- Which of the following statements is incorrect?
(a) Composting is the anaerobically or aerobically digestion
of biodegradable organic matter of solid wastes.
(b) Incineration involves anaerobically burning of non-
biodegradable but combustible constituents of solid
waste such as intravenous fluid bottles.
(c) Indira Gandhi Canal has transformed the barren desert
of Jaisalmer district into rich and lush fields.
(d) Agroforestry is a cohesive approach to meet both food
and non-food demands.
- Read the following statements and select the option which
correctly fills the blanks.
(i) Polynuclear aromatic hydrocarbons are ____.
(ii) Methane is produced naturally during ____ of
organic matters.
(iii) ____ causes chlorosis and necrosis of vegetation
in as low concentration as 0.032 ppm.
(iv) Soot is produced from ____ burning of
carbohydrates.
(i) (ii) (iii) (iv)
(a) non-toxic decomposition SO 2 complete
(b) carcinogenic accumulation N 2 O incomplete
(c) non-toxic accumulation SO 2 complete
(d) carcinogenic decomposition SO 2 incomplete
- Hay fever occurs because of
(a) dust allergy (b) fungal allergy
(c) pollen allergy (d) chemical allergy.
- Read the following statements and select the correct option.
(a) Nitrate rich fruits and water produce nitrites in
alimentary canal that enter blood and combines with
haemoglobin forming met-haemoglobin.
(b) Organic farming involves use of biofertilisers, pesticides
of organic origin, susceptible and resistance varieties.
(c) Excessive use of fertilisers causes soil deterioration
through increase of natural microflora.
(d) Weedicides, contain arsenic, sulphur and are persistent
VV
.H\LVSXEOLVKHGLQWKLVLVVXH6HDUFKQRZ! -
Check your score! If your score is
> 90% EXCELLENT WORK! You are well prepared to take the challenge of final exam.
90-75% GOOD WORK! You can score good in the final exam.
74-60% SATISFACTORY! You need to score more next time.
< 60% NOT SATISFACTORY! Revise thoroughly and strengthen your concepts.
No. of questions attempted ......
No. of questions correct ......
Marks scored in percentage ......
