Choose the INCORRECT statement/statements? (i) The brain stem joins the brain with the spinal cord.

(ii) The right hemisphere of the brain controls the left side of the body.

(iii) Our sense organs are controlled by cerebellum.

(iv) The pigments in our pupil give colour to the eyes.

Only (i) and (ii)

Only (ii) and (iii)

Only (i) and (iii)

Only (iii) and (iv)

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt

Polar bears give birth and hunt on sea ice. which of the following would polar bears survive during the melting of arctic ice? growing another layer of fur during summer migrate inland to search for different food sources staying put until the ice refreezes sticking to the usual diet of seals