Answer:
The concentration downstream reduces to 0.03463mg/L
Explanation:
Initially let us calculate the time it is required to fill the lake, since for that period of time the pollutant shall remain in the lake before being flushed out.
Thus the detention period is calculated as
Now the concentration of the pollutant after 14.872 days is calculated as
where
is the initial concentration
't' is the time elapsed after which the remaining concentration is calculated
k is the dissociation constant.
Applying values we get
The coals or wood embers that are used in fire walking have a low heat capacity. Sweat produced on the bottom of people's feet also helps form a protective water vapor. All of this together makes it possible, if moving quickly enough, to walk across hot coals without getting burned.
Answer:
Option (B)
Explanation:
Soil texture is defined as the amount of soil that is present and the type of materials that comprises the soil such as sand, silt and clay particles, of which the sands are the coarser particles and the clay is the finer particles.
This soil texture enables us to determine the properties such as moisture content, porosity and permeability and the number of nutrients that it can provide for the growth and expansion of plants.
Thus, from the above-given condition, the soil texture property helps in checking the suitability of the land for growing berries.
Thus, the correct answer is option (B).
Time/sec. the x-axis is always the independent variable.
