To determine the truthfulness of the given statements in the context of global water stress and industrial water consumption, let's analyze each statement individually:

Analysis of Statement I: "By 2025, two-thirds of the world's people will be living in water-stressed countries."

• According to various environmental and global water resources studies, water stress is projected to affect a significant portion of the global population. Reports by the United Nations and World Bank have indicated that by 2025, a large portion of the world's population could be living in areas facing water scarcity and stress due to increasing demand and climate change effects. These issues are exacerbated by population growth and inefficient water management.
• Thus, this statement is widely supported by authoritative global reports on environmental and water resource management, making it true.

Analysis of Statement II: "Growth of water withdrawal and consumption in the Industrial sector is going to overtake that in the Agriculture sector by 2025."

• Agriculture remains the largest water-consuming sector globally due to irrigation needs. While industrial water usage is significant and growing, agriculture still vastly surpasses it in terms of total water withdrawal, especially in many developing regions where agriculture forms the backbone of economies.
• By 2025, it is unlikely that industrial water consumption will overtake agricultural consumption at the global scale, as agriculture requires a continuous and high supply of water for irrigation and food production.
• This statement is not substantiated by current data trends or projections, making it false.

Based on the analysis above:

• Statement I is true. Data and projections support the widespread impact of water stress affecting a large portion of the global population.
• Statement II is false. Agriculture remains the primary consumer of water resources, and there's no evidence to suggest a shift in favor of industrial water consumption surpassing it by 2025.

Conclusion: The correct answer is: Statement I is true but Statement II is false.