MCQ
The most quickly available source of nitrogen to plants are:
- ANitrate fertilizers.
- BNitrite fertilizers.
- CAmmonical fertilizers.
- DAmmonical nitrate fertilizers
Explanation:
The chemical compound ammonium nitrate, the nitrate salt of ammonium. It is a white crystalline solid and is highly soluble in water. It is predominantly used in agriculture as a high-nitrogen fertilizer.
Nitrate fertilizers are preferred due to the highest absorbing ability of nitrates by plants, than in any other form.
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$(A)$ Colostrum is recommended for the new born because it is rich in antibody.
$(B)$ Chikungunya is caused by a Gram negative bacterium.
$(C)$ Tissue culture has proved useful in obtaining virusfree plants.
$(D)$ Beer is manufactured by distillation of fermented grape juice. How many of the above statements are wrong?
$I$. They inhibit ovulation and implantation
$II$. They alter the quality of cervical mucous to prevent or retard the entry of sperms
$III$. They prevent the ejaculated semen from entering the female vagina
$IV$. They inhibit spermatogenesis