Read the text and choose the correct answer.
There are many careers and __________(16) expected to be in high demand by 2030, due to many factors. The tech industry is one of the most considerable high-demand industries expected to grow as the years pass. The U.S. makes up 33% of the world's tech market, making it the __________(17) leader of the world, and one of the U.S. industries that is expected to continue to grow due to the increased demand for technological advancements and innovations.
However, the growth in population and demand in various industries also __________(18) with increased waste, pollution, and use of resources, with factories causing as __________(19) as 2/3 of the global gas emission contributing to climate change. Because of these harmful ___________(20) effects, there is also an increased need for careers in environmental protection, some of which have not even been created yet.