Set-3
1) In size, animals are outdone on land by plants, among whose foliage they may often hide. In contrast, the photosynthetic algae, which feed the open oceans, are usually too small to be seen, but marine animals range to the size of whales. Diversity of form, in contrast to size, only impinges peripherally on human awareness of life and thus is less noticed. ___.
1) Nevertheless, animals represent three-quarters or more of the species on Earth.
2) Nevertheless, the diversity reflects the flexibility in feeding, defense, reproduction and mobility.
3) Nevertheless, animals follow virtually every known mode of living for the creatures of Earth.
4) Nevertheless, humans study animals to learn about themselves.
5) Nevertheless, animals dominate human conceptions of life on Earth.
2) Macroeconomic theory suggests that the economies of ageing populations are likely to grow more slowly than those of younger ones. As more people retire, and fewer younger ones take their place, the labour force will shrink, so output growth will drop unless productivity increases faster. ____.
1) Since the ratio of people of working age to those of retirement age will improve, productivity may also improve.
2) Since the young cost less than the old, overall burden on the economy may be lighter.
3) Since age-related decline in the labour force can cut growth, productivity has to be increased.
4) Since populations age, savings in the economy as a whole will be run down and assets sold off.
5) Since the remaining workers will be older, they may actually be less productive.