Answer in three-four sentences : 3 x 6 = 18 6.1 Draw the preliminary structures of the molecules of water, methane and ammonia where the atoms are held by covalent bonds. 6.2 Mention the structure and function of endoplasmic reticulum 6.3 The specific heat of copper is 0.09 cal/g °C. How much heat will be required to increase the temperature of a piece of copper weighing 70 g by 20°C? 6.4 "Organic manure is better than inorganic fertilizers"--justify the statement. 6.5 Upon which factors does the rate of evaporation of a liquid depend? 6.6 How are spawns of fishes produced artificially
way on the ban :)
Answers
Answer:
(i dont know the first 2/3 questions so im gonna answer the other ones)
Explanation:
6.4: "Organic manure is better than inorganic fertilizers"--justify the statement.
inorganic fertilizers require a lot of water and excess use of them in the long run makes the soil fertility decline and the soil becomes acidic...
organic manure does not require a lot of water and it actually contains humus instead of chemicals, it also has less pH than fertilizers and does not reduce the soil fertility that quick, manure is mildly acidic but it can be solved by adding lime to neutralize the soil.
(Also fertilizers are expensive to produce and cause environmental degradation during the production process and manure is inexpensive to produce and does not cause environmental degradation)
6.5: Upon which factors does the rate of evaporation of a liquid depend?
The rate of evaporation depends on humidity, wind speed, heat, etc.
higher the humidity, higher the water vapour content in the air and lower the evaporation
wind speed, wind can carry water droplets and aid in the process of evaporation hence, clothes dry faster on windy days and slow on cloudy days
if you supply more heat, evaporation increases
Answer:
Idc
if they like me or not
because no one likes mods
Explanation: