☆ which gas is produced when a fuel burns in a. sufficient supply of air
b. insufficient supply of air

☆ in a soda-set type fire extinguisher, reacts with sulphuric acid to give out carbon dioxide.



Here, We have 2 questions. (☆ marked)
Subject - Science (Biology)

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Q-Which gas is produced when a feul burns?

Q- in a soda-set type fire extinguisher, ___________ reacts with sulphuric acid to give out carbon dioxide.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."