Read the following passage and answer the question that follows. Your answers to these items should be based on the passage only.

Aristocratic government ruins itself by limiting too narrowly the circle within which power is confined; oligarchic government ruins itself by the incautious scramble for immediate wealth. But even democracy ruins itself by excess of democracy. Its basic principle is the equal right of all to hold office and determine public policy. This is, at first glance, a delightful arrangement; it becomes disastrous because the people are not properly equipped by education to select the best rulers and the wisest courses. The people have no understanding and only repeat what their rulers are pleased to tell them. Such a democracy is tyranny or autocracy - Plato

Which one of the following statements best reflects the crux of the passage given above?

Read the following passages and answer the items that follow. Your answers to these items should be based on the passages only.

Fig trees (genus Ficus) are considered sacred in India, East Asia and Africa and are common in agricultural and urban landscapes where other large trees are absent. In natural forests, fig trees provide food for wildlife when other resources are scarce and support a high density and diversity of frugivores (fruit-eating animals). If frugivorous birds and bats continue to visit fig trees located in sites with high human disturbance, sacred fig trees may promote frugivore abundance. Under microclimate, plenty of seedlings of other tree species would grow around fig trees.

On the basis of the passage given above, the following assumptions have been made :

1. Fig trees can often be keystone species in natural forests.

2. Fig trees can grow where other large woody species cannot grow.

3. Sacred trees can have a role in biodiversity conservation.

4. Fig trees have a role in the seed dispersal of other tree species. 

which of the above assumptions is/are valid ?

Read the following passage and answer items that follow. Your answers to these items should be based on the passages only.

At the heart of agroecology is the idea that agroecosystems should mimic the biodiversity levels and functioning of natural ecosystems. Such agricultural mimics, like their natural models, can be productive, pest-resistant, nutrient conserving, and resilient to shocks and stresses. In ecosystems there is no ‘waste’, nutrients are recycled indefinitely. Agroecology aims at closing nutrient loops, i.e., returning all nutrients that come out of the soil back to the soil such as through application of farmyard manure. It also harnesses natural processes to control pests and build soil fertility i.e., through intercropping. Agroecological practices include integrating trees with livestock and crops.

Consider the following :

1. Cover crops

2. Fertigation

3. Hydroponics

4. Mixed farming

5. Polyculture

6. Vertical farming

Which of the above farming practices can be compatible with agroecology, as implied by the passage? 

Read the following passage and answer items that follow. Your answers to these items should be based on the passages only.

Computers increasingly deal not just with abstract data like credit card, details and databases, but also with the real world of physical objects and vulnerable human bodies. A modern car is a computer on wheels; an aeroplane is a computer on wings. The arrival of the “Internet of Things” will see computers baked into everything from road signs and MRI scanners to prosthetics and insulin pumps. There is little evidence that these gadgets will be any more trustworthy than their desktop counterparts. Hackers have already proved that they can take remote control of internet connected cars and pacemakers.

Which one of the following statements best reflects the most critical inference that can be made from the passage given above ?