(a) Namakan keimunan P dan Q.
(b) Terangkan persamaan dan perbezaan antara keimunan P dan keimunan Q.
(c) Pada pandangan anda, keimunan yang manakah lebih baik? Jelaskan jawapan anda.
4. Cadangkan dua amalan yang melemahkan sistem keimunan seseorang.
dadak

Consider the nuclear equation below. 239 > x + 4 he 94 2 what is x? 1.235 cm 96 2.243 u 92 3.235 u 92 4.243 cm 96

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh