Pls answer this What is the main negative effect of slash and burn deforestation in rainforests?

A. Bare land warms absorbs heat and warms the surrounding air faster than forested areas.

B. The erosion of thin, fragile tropical topsoils

C. Heavy smoke in the air causes respiration problems for humans

D. A rapid increase of carbon dioxide, faster than photosynthesis can remove the CO₂

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation:

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands