Answer:
1) Stirring and pulverizing the soil before seeds are planted or removed as well as to loosen the soil in order to allow enough air into the soil.
2) Vitamin A, zinc supplementation and exclusive breastfeeding
3)Manure from horses, cows or cattle
4) Mechanical
Explanation:
A cultivator is a farm implement used for stirring and pulverizing the soil before seeds are planted or removed as well as to loosen the soil in order to allow enough air into the soil. This enables the crop to grow quicker. It is driven by a tractor and does more work than the harrow which is not tractor driven.
Nutrition-specific intervention is a programme by UNICEF to talk undernutrition in foetus as well as growing children. The nutrients specified are exclusive breastfeeding, vitamin A and zinc supplementation.
Manure is referred to as major component used to aid crop growth. It contains essential nutrients which are required by crops for growth and good health. Manure is natural and can be gotten from animal dung.
Seed drills are sowing machines used to sow seeds accurately at the precise depth and distance measured. It does an extra work of covering the soil as well as protecting the seeds from birds. Due to the fact that it is a machine, it saves time and labour as well as money.
Answer:
When blood sample is diluted with distilled water ,RBC burst because of the movement of water molecule from outside to inside the cells. This is due to <u>osmosis</u>.
Explanation:
<u>Osmosis</u>- Osmosis is a process of movement of water molecules from its higher concentration to lower concentration through a semipermeable membrane.
This is a passive process. based on dissolved solutes in liquid , osmotic pressure gradient generates and this gradient allows liquid molecule to move from higher concentration of liquid to lower concentration. <em>Movement of liquid molecules continues till osmotic gradient meets to the equilibrium in and out of the cell.</em>
<em>On the basis of dissolved solutes in liquid there are 3 types of solution.</em>
1- Hypertonic solution- In this solution the solute concentration is higher than inside the cell. If cell is placed in this solution water molecules move from cell to the outer medium ,makes cell to shrink. in case of RBC this is known as CRENATION.
2- Hypotonic solution- In this solution the solute concentration is lower than inside the cell. So if cell is placed in this solution ,water molecule moves from outer medium to inside the cell. It will make cell swell and burst. (That is the case with RBC asked in question)
3- Isotonic solution- In this solution concentration of solute inside cell and outside medium is same . No movement of liquid molecule will occur, as the osmotic gradient will be same.
Answer:
what diagram are u talking about
Answer:
Definitely A is the correct option
Na+ b/c Na+ influx results in positive membrane potential
