In a couple of sentences, describe the cognitive effects secondhand smoke can have upon children. (Site 1) They inhale more than 4,000 toxic substances, they are passive smokers, they involuntarily inhale the smoke from one or more smokers.
DANGER: respiratory diseases coughing, wheezing, bronchitis, recurrent ear infections, asthma, risk of tooth decay in children, some tobacco dependence, risk of becoming future smokers.
passive smoking also aggravates preexisting chronic respiratory diseases, cystic fibrosis and is associated with a risk of sudden infant death syndrome

the answer is trees if i'm not mistaken

meiosis is the first to occur after the nuclei of opposite of opposite mating types fuse

c. earths continental crust is thicker than its lithosphere.

because, the lithosphere is the outermost layer of the earth/ 100 km thick and is defined by its machanical properties.the lithosphere contains oceanic and continental crust that varies in age and thickness across locations and geologic time. the lithosphere is the coolest layer of the earth in terms of temperature. the term lithosphere should not be confused with the use of "geosphere" which is used to indicate all of earth systems, including the atmosphere, hydrosphere   and biosphere. the surface of the earth can be divided into the continental crust and the oceanic crust.   the continental crust is made mostly of granite while the oceanic crust is made of basalt. the average thickness of the continental crust is 25 miles and the average thickness of the oceanic crust is 5 miles.   three types of rock, igneous, sedimentary, and metamorphic, make up the surface of the earth. that's why 3 option is preferable.

the correct answer in apex is tissue development, i know because i just had this question