Question

rhinos in its entirety, with... large - scale habitat loss. in any case, for rhino population to be genetically viable, a minimum of 20, unrelated founder individuals’ are needed. otherwise, a population becomes inbred and prone to genetic abnormalities - and fertility problems. northern white rhinos (a subspecies of the white rhino) used to roam parts of uganda, chad, sudan, the central african republic, and the democratic republic of the congo, but they are now extinct in the wild due to years of 68 poaching civil wars. conservationists are urging activists and everyday citizens - especially those who reside in close proximity to the home ranges of wildlife - to take an active stance on rhino conservation. as an umbrella species, rhinos are an integral part of a rich ecosystem whose daily habits directly impact the quality of life for other species. their grazing, for instance, keeps the grass trim, 69 which in turn makes it easier to monetize group tours of the land. while scientists acknowledge that extinction is a natural part of evolution, the process is occurring at a much faster rate because of poaching, habitat destruction, over - exploitation of wildlife, and even political conflict. rhino extinction will have a 70 profound ripple effect on other species, and sudan’s death is a glaring reminder. cc by license can be found at https://creativecommons.org/licenses/by/4.0/. this passage has been excerpted and adapted from the original, including minor punctuation changes, spelling changes and other modifications that have not substantially changed content or intent. 68. poaching civil wars a) no change b) poaching and civil wars too c) poaching and civil wars d) poach and civil wars 69. which in turn makes it easier to monetize group tours of the land a) no change b) making the terrain easier for smaller mammals to navigate c) thus reducing the available food for other, more populous species d) an issue that has been long overlooked by the local government 70. profound a) no change b) prolonged c) prosaic d) protected

Explanation:

68.

The context requires a noun phrase to parallel "habitat loss" and explain rhino extinction causes. "poaching and civil wars" is grammatically consistent and logically fits the list of threats.

69.

The sentence needs a clause that logically connects rhino grazing to land monetization for tours. The original option creates a run-on. Option B provides a participial phrase that clearly shows the causal relationship between trimmed grass and easier tour monetization.

70.

The sentence describes a large, significant ripple effect from rhino extinction. "Profound" means deep or far-reaching, which matches the context. The other options do not convey the required sense of significant impact.

Answer:

1. C) poaching and civil wars
2. B) making the terrain easier for smaller mammals to navigate
3. A) NO CHANGE