The phrase "are necessary for development" is correct and usable in written English.
It can be used when discussing essential elements or factors that contribute to growth or progress in various contexts, such as personal, professional, or societal development.
Example: "Investments in education and infrastructure are necessary for development in emerging economies."
Alternatives: "are essential for growth" or "are vital for progress."
Nuclear tests are necessary for development of the nuclear-pumped X-ray laser, one of Star Wars' most promising components.
Sellon, R. K. et al. Resident enteric bacteria are necessary for development of spontaneous colitis and immune system activation in interleukin-10-deficient mice.
"Most of the mouse Y chromosome genes are necessary for development of mature sperm and normal fertilization, both in mice and in humans.
Although high doses of glucocorticoids are teratogenic, endogenous hormones are necessary for development.
Resource indicators which include the average size of technological innovations' costs are necessary for development of innovative activity but their influence on result has probabilistic character.
Many of the processes that are necessary for development are recapitulated in breast cancer, especially in the metastatic cascade [ 22].
Sleep has been assumed to be necessary for development and to be a vital function in mammals1,2 and other animals3,4.
The comprehensive information on the properties of molten fuel and coolant salts is necessary for development of new designs.
For less-developed countries, neither the linear model of technology nor an "inverted linear model" would take place: a more interactive approach is necessary for development.
In all such applications, the knowledge of fluid dynamic and transport parameters is necessary for development of appropriate reactor models and scale-up rules.
Few studies in francophone West Africa have examined attitudes of male involvement in family planning from the perspective of men themselves, yet this evidence is necessary for development of successful family planning projects that include men.
