If a plant uses up all the available carbon dioxide, which event will happen first?

The correct answer is -

Decrease in the rate of photosynthesis that is formation of carbohydrate (glucose) will be reduced.

Carbon dioxide (CO2) is one of the essential reactants in the process of formation of food (photosynthesis) in plants.

Photosynthesis is a process of formation of food (glucose) in green plants and algae using CO2 and H2O (water) in the presence of sunlight.

If all the available carbon dioxide is used up by a plant, the process of photosynthesis will be affected significantly, which will cause a decline in the formation of carbohydrate (glucose) in the plant.

"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."

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.