The phrase "a essential areas" is not correct in written English.
It should be "an essential area" or "essential areas" depending on the context.
Example: "Education is one of the essential areas for personal development."
Alternatives: "a crucial aspect" or "a vital field."
In the historical centre there's a 3km section that's been turned into a pedestrianised zone – an essential area to wander through.
We hope that students using the modules will experience higher levels of interest in their course work generated by the coupling of modern mathematics and modern biology, and an elevated awareness of biomathematics as an essential area of contemporary life.
In this respect the present hierarchical approach deals with both segmentation and recognition of handwritten Bangla word images for a complete solution to handwritten word recognition problem, an essential area of OCR of handwritten Bangla text.
Advancing the understanding of policy agenda setting and formulation process, especially how and why a policy agenda item is maintained over time, is an essential area of analysis to inform public social policy development and implementation.
The physical component is an essential area for Amazon, not just because it represents a way for the company to grow, but because it helps secure its place in what is described as "omni-commerce", ahead potentially of competitors like eBay but also Uber.
Mr. Summers said yesterday that the "study of the Afro-American experience is an essential area of study at Harvard" and that Professor Gates had "contributed to Harvard enormously".
Removal of heavy metals is an essential area of research in membrane filtration technology.
Since the physical and mechanical properties of GBs are inevitably dependent on their atomic structure, the study of the GB structure has emerged as an essential area in the larger field of the science and design of ultrafine-grained materials.
The issue of gender and discrimination is also an essential area of consideration.
Functionally, the frontal lobes (which are involved in executive functioning and planning), the hippocampus (an essential area for forming memories), and the temporal lobes (which are responsible for speech and hearing) also show signs of dysfunction.
