Questions

‘Were’ needs to be replaced with ‘was’ to make the sentence grammatically correct. This is because, ‘If the subjects are joined by as well as, with, along with, together with, and not, in addition to, but, besides, except, rather than, accompanied by, like, unlike, no less than, nothing but, led by, headed by, guided by, controlled by,governed by,etc.. Then the verb will agree with the first subject. Thus, the correct formation would be, ‘The teacher as well as his wife was invited’.

Species richness is generally lower in the Arctic than at lower latitudes, and richness also tends to decline from the low to high Arctic.Many hypotheses have been advanced to explain the overall decline of biodiversity with increasing latitude, although there is still no consensus about a mechanistic explanation. Abiotic factors include lower available energy and area at high latitudes, and the relatively young age of Arctic ecosystems.

India unveiled the third National Wildlife Action Plan for 2017-2031. The plan was unveiled by environment minister Dr Harsh Vardhan on the inaugural day of the Global Wildlife Programme (GWP) conference The third National Wildlife Action Plan is unique as this is the first time India has recognised the concerns relating to climate change impact on wildlife and stressed on integrating actions that need to be taken for its mitigation and adaptation into wildlife management planning processes. The plan adopts a “landscape approach”in conservation of all wildlife.The government has also underlined an increased role of private sector in wildlife conservation. The plan has 5 components, 17 themes, 103 conservation actions and 250 projects.

Here there are combination of two series.

 1) 9, 18, 36, 72, 144

 2) 8, 6, 4, 2, 0

Therefore, The next number in the given series is 0.