Some people think we should geo-engineer earth's climate in order to prevent global warming which proposal could cool earth's climate
a) increase carbon dioxide emissions
b) adding dust particles into the upper atmosphere
c) attempting to slow volcanic eruptions by plugging craters
d) covering sections of earth's surface with black plastic in order to block sunlight

of those who start drinking before they're 15 will develop alcohol dependence

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.

hope it mark me as brainlieast.

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms