Answer:
3 m²
Explanation:
area of each trap = L × B = 15 cm × 10 cm = 0.15 m × 0.1 m = 0.015 m²
total area occupy by trap = number of traps × each area = 1000 × 0.015 m² = 15 m²
area of the room = 5 m × 3.6 m = 18 m²
amount of room remaining for Jerry to walk = 18 m² - 15 m² = 3 m²
An explosion occurs when the timescale for the energy release by some process is much shorter than the timescale on which a system can adjust to damp the energy release process. In the present day Sun, nuclear fusion is a very slow process: on average it takes many billion years for a proton to fuse with another. This timescale is quite temperature dependent, so you might have thought the centre of the Sun might heat up quickly, leading to a runaway "explosion". However, an increase in temperature leads to an increase in pressure that would expand the Sun, reducing the core density and temperature and decreasing the rate of nuclear fusion again. The timescale for the Sun to react in this way is just millions of years, so this acts like a thermostat that keeps the reactions under control.
Natural resources made people be able to live their life and it all had to do with their geography