Answer:
Conservation tillage.
Explanation:
Tillage refers to agricultural methods that is practiced before growing crops it could be by digging, overturning , ploughing e.t.c.
Conservation tillage is a type of tillage that involve practices which leave the soil undisturbed. It could either be no till I .e the soil is not disturbed at all or mulch uses the chisel to till the soil before planting and ridge till in which the the seeds are planted on a seed beds. This type of tillage conserve the soil by reducing erosion.
Erosion bring about removal of soil tip layer, washing away of nutrients which is important for plants growth. Through conservation tillage soil structure and nutrients are preserved and sustained.
Answer:
160
Explanation:
If p = frequency of dominant allele and q = frequency of recessive allele according to Hardy-Weinberg equilibrium,
p + q = 1
p² + 2pq + q² = 1
where p² = frequency of dominant homozygous genotype
q² = frequency of recessive homozygous genotype
2pq = frequency of heterozygous genotype
Here,
b = 4% = 0.04
bb = 0.04 * 0.04 = 0.0016
Number of individuals in population = 100000
Number of homozygous bb individuals = 0.0016 * 100000 = 160
They are called circadian rhythm. Circadian rhythms are physical, mental and behavioral changes that follow a repeated daily cycle. They are usually biological processes that display an oscillation of about 24 hours and occurs in animals, plants and even cyanobacteria. The process responds to changes in light and darkness in the surroundings of an organism.
<span>Soil degradation by human activity is a huge global issue since it deteriorates the soil and there is a reduction in quality of the soil and its productivity. The region that is facing this issue largely is Asia. This is the reason solving this issue is now an international agenda.</span>
