The phrase "this question requires" is grammatically correct and can be used in written English.
It is typically used to introduce a task or action that needs to be done in order to answer a question. Here is an example of its usage: "The essay prompt reads, 'Discuss the role of technology in modern society.' This question requires you to analyze the impact of technology on various aspects of our daily lives, such as communication, education, and employment."
However, we are unable to shed any light on whether those who have a greater BMI also have a greater requirement for folate, this question requires further research.
Exploring this question requires us to widen and deepen our search.
The answer to this question requires us to understand what got growth motoring in the first place, after the stagnation that marked much of human history.
In a new paper, written for the Economic and Social Research Council's (ESRC) Urban Transformations portfolio, and arising out of a series of interdisciplinary workshops funded by the ESRC we argue that answering this question requires us to bridge the gulf between the social sciences and the biological sciences.
As Danto puts it: "Given two objects that look exactly alike, how is it possible for one of them to be a work of art and the other just an ordinary object?" Answering this question requires realizing that there are no perceptual qualities that make something a work of art.
Addressing this question requires further research.
Answering this question requires polishing your crystal ball, but we can speculate.
Answering this question requires a psychological theory of moral development which explains why individuals pursue the specific goals they do.
However, answering this question requires some care for more complex systems like the Lorenz or Moore-Spiegel attractors.
As this question requires us to indulge in historical counterfactuals, which are controversial (Radick 2005), it is difficult to answer.
To answer this question requires understanding the evolutionary processes that generated them and the paths by which they have originated.
