Explanation:
Advantages :
1}These are the main source of power generation.
2}These projects control the floods because water can be stored in them. These projects have converted many, 'rivers of sorrows' into 'rivers of boon'.
3}These projects are the main source of irrigation and also help in conserving soil.
Disadvantages:
1}Dams also fragment rivers making it difficult for aquatic fauna to migrate for spawning, i.e, to produce eggs.
2}It resulted in the displacement of local communities.
3}The multipurpose projects induced earthquakes, caused waterborne diseases.
I'm not sure but but i think the answer will be:
A. additive genetic variance times the selection differential.
<span>Ans : The speed of sound is the distance travelled per unit time by a sound wave as it propagates through an elastic medium. At 20 °C (68 °F), the speed of sound is 343 metres per second (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn), or a kilometre in 2.91 s or a mile in 4.69 s.
The speed of sound in water increases with increasing water temperature, increasing salinity and increasing pressure (depth). The approximate change in the speed of sound with a change in each property is:
Temperature 1°C = 4.0 m/s
Salinity 1PSU = 1.4 m/s
Depth (pressure) 1km = 17 m/s</span>
The Voluntary Sector is usually comprised of organizations whose purpose is to benefit and enrich society, often without profit as a motive and with little or no government intervention.
Unlike the private sector where the generation and return of profit to its owners is emphasized, money raised or earned by an organization in the voluntary sector is usually invested back into the community or the organization itself.
<span>Dolores Huerta was a woman of color who fought discrimination.
Rosa Parks also fought discrimination by sitting in the front of the bus.</span>