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Question 1 of 5
1. Question
2 points
Which among the following factors favor the decomposition of a organic matter in relation to
weathering?
1. Low level of oxygen
2. PH of soil
3. Warm temperature
4. Moisture
Correct
Correct Answer: C
Explanation
There are several factors affects decomposition of organic matter. They are Moisture ,Sufficient Oxygen Warm temperature,PH of the soil, Composition of the matter
Incorrect
Correct Answer: C
Explanation
There are several factors affects decomposition of organic matter. They are Moisture ,Sufficient Oxygen Warm temperature,PH of the soil, Composition of the matter
Question 2 of 5
2. Question
2 points
Consider the following statements regarding Primary Activities:
1 Fishing, Quarrying, Forestry are included under primary activities.
2. People engaged in primary activities are called red-collar workers.
Which among the above statements is/are correct?
Correct
Correct Answer: C
Explanation
Primary activities are directly dependent on the environment as these refer to utilization of earth’s resources such as land,water,vegetation,building materials and minerals.It includes hunting and gathering,pastoral activities,fishing,forestry,agriculture,mining and quarrying.
Statement 1 is correct.
Primary sector refers to that sector of the economy which uses natural resources to produce goods. Primary sector dominates in underdeveloped countries. People engaged in primary activities are called red-collar workers due to the outdoor nature of their work. Statement 2 is correct.
Incorrect
Correct Answer: C
Explanation
Primary activities are directly dependent on the environment as these refer to utilization of earth’s resources such as land,water,vegetation,building materials and minerals.It includes hunting and gathering,pastoral activities,fishing,forestry,agriculture,mining and quarrying.
Statement 1 is correct.
Primary sector refers to that sector of the economy which uses natural resources to produce goods. Primary sector dominates in underdeveloped countries. People engaged in primary activities are called red-collar workers due to the outdoor nature of their work. Statement 2 is correct.
Question 3 of 5
3. Question
2 points
‘Borthekera’ a plant seen in news recently is mentioned in the context of
Correct
Ans c
Medicinal plant commonly called Borthekera in Assamese found to have cardioprotective potential.
Garcinia pedunculata, a medicinal plant commonly called ‘Borthekera’ in the Assamese language, traditionally forbidden for raw consumption, has been found to protect from heart diseases. Administration of the dried pulp of the ripe fruit of the medicinal plant reduced cardiac hypertrophy indicators and oxidative stress and heart inflammation brought on by ISO. The sun-dried slices of the ripe fruit are used for culinary and medicinal purposes and are known to have therapeutic properties like anti-inflammatory, anthelmintic, antibacterial, antifungal, antidiabetic, hypolipidemic, nephroprotective, and even neuroprotective activity.
Incorrect
Ans c
Medicinal plant commonly called Borthekera in Assamese found to have cardioprotective potential.
Garcinia pedunculata, a medicinal plant commonly called ‘Borthekera’ in the Assamese language, traditionally forbidden for raw consumption, has been found to protect from heart diseases. Administration of the dried pulp of the ripe fruit of the medicinal plant reduced cardiac hypertrophy indicators and oxidative stress and heart inflammation brought on by ISO. The sun-dried slices of the ripe fruit are used for culinary and medicinal purposes and are known to have therapeutic properties like anti-inflammatory, anthelmintic, antibacterial, antifungal, antidiabetic, hypolipidemic, nephroprotective, and even neuroprotective activity.
Question 4 of 5
4. Question
2 points
Pseudomonas aeruginosa, Acinetobacter baumanii, Staphylococcus aureus’, a group of bacterias seen in news are known for
Correct
Ans c
PseAcinetobacter baumanii, Staphylococcus aureus and Escherichia coli are proven biofilm-forming bacteria. Researchers from ARCI, an autonomous institute of the Department of Science and Technology (DST), have developed a nanocomposite coating ((named at ARCI as ATL)) by combining water repellence and biocidal property (combinatorial approach), which exhibits both hydrophobic and biocidal behaviour.
ATL was deposited on different surgical sutures made of silk, nylon, and polyglactin 910 (vicryl) in addition to surgical instrument grade stainless steel 420 coupons and tested for biofilm inhibition against American Type Culture Collection (ATCC) and clinical isolate strains of proven biofilm-forming bacteria such as Pseudomonas aeruginosa, Acinetobacter baumanii, Staphylococcus aureus and Escherichia coli.
Incorrect
Ans c
PseAcinetobacter baumanii, Staphylococcus aureus and Escherichia coli are proven biofilm-forming bacteria. Researchers from ARCI, an autonomous institute of the Department of Science and Technology (DST), have developed a nanocomposite coating ((named at ARCI as ATL)) by combining water repellence and biocidal property (combinatorial approach), which exhibits both hydrophobic and biocidal behaviour.
ATL was deposited on different surgical sutures made of silk, nylon, and polyglactin 910 (vicryl) in addition to surgical instrument grade stainless steel 420 coupons and tested for biofilm inhibition against American Type Culture Collection (ATCC) and clinical isolate strains of proven biofilm-forming bacteria such as Pseudomonas aeruginosa, Acinetobacter baumanii, Staphylococcus aureus and Escherichia coli.
Question 5 of 5
5. Question
2 points
If a geomagnetic storm reaches the Earth, which of the following are the possible effects on the Earth?
1. Disruption of global navigation systems
2. Slowing down of ocean currents
3. Creation of auroras at poles
4. Radio communication is affected
5. Intensification of glacier melting
6. Difficulty in controlling satellites
7. Harmful currents induced in power grid and pipelines
Select the correct answer using the code given below
Correct
Ans c
The hazards associated with geomagnetic storms are ->
Because the ionosphere is heated and distorted during storms, long range radio communication that relies on sub-ionospheric reflection can be difficult or impossible and global-positioning system (GPS) communications can be degraded.
Ionospheric expansion can increase satellite drag and make their orbits difficult to control.
During magnetic storms, satellite electronics can be damaged through the build up and discharge of static-electric charges. Astronauts and high altitude pilots can be subjected to increased levels of radiation.
Even though rapid magnetic field variations are generated by currents in space, very real effects can result down here on the Earth’s surface. That includes voltage surges in power grids that cause blackouts.
The Aurora Borealis or “Northern Lights” and the Aurora Australis or “Southern Lights” occur during geomagnetic storms when charged particles impact the Earth’s upper atmosphere
It is not known to cause slowing down of ocean currents and intensification of glacier melting.
Incorrect
Ans c
The hazards associated with geomagnetic storms are ->
Because the ionosphere is heated and distorted during storms, long range radio communication that relies on sub-ionospheric reflection can be difficult or impossible and global-positioning system (GPS) communications can be degraded.
Ionospheric expansion can increase satellite drag and make their orbits difficult to control.
During magnetic storms, satellite electronics can be damaged through the build up and discharge of static-electric charges. Astronauts and high altitude pilots can be subjected to increased levels of radiation.
Even though rapid magnetic field variations are generated by currents in space, very real effects can result down here on the Earth’s surface. That includes voltage surges in power grids that cause blackouts.
The Aurora Borealis or “Northern Lights” and the Aurora Australis or “Southern Lights” occur during geomagnetic storms when charged particles impact the Earth’s upper atmosphere
It is not known to cause slowing down of ocean currents and intensification of glacier melting.
