The answer is
D. another natural disturbance
Answer:
Diamonds cam form in the mantle because of the impact of the weight of the overlying rock which bears down on it, in combination with the high temperature of the area where they are formed (about 100 miles beneath the surface). Therefore, the correct answer is option D. The weight of the rocks above the mantle results in high pressure.
Explanation:
because of the impact of the weight of the overlying rock which bears down on it, in combination with the high temperature of the area where they are formed (about 100 miles beneath the surface)
Answer:
Such glands are classified as endocrine glands.
Explanation:
Endocrine glands also known as ductless glands produce and secretes hormones (chemical substances) directly into the bloodstream to regulate the activities of cells or organs. The endocrine glands make-up the endocrine system. This system influence reproduction, metabolism, growth and many other body functions. The endocrine glands include the hypothalamus, the pituitary, thyroid, ovaries, testes, pineal gland, parathyroids, pancreas and adrenal glands.
In contrast to the endocrine glands is the exocrine glands. The exocrine glands produce and secretes their hormones through ductal system onto epithelial surface. Example of exocrine glands are sebaceous glands of the skin, the pyloric and Cardia glands of the stomach, salivary glands etc.
That represents geographical isolation.
Biological isolation is present where members of species are not able to produce fertile offspring due to the genetic incompatibility.
Temporal isolation includes differences in the seasons of mating. One species mates in season x and another in season y, means they will not be able to interbreed.
Anatomical isolation means there are differences in the physical structures of the species members that inhabit their ability to mate.
B) Nations meeting to discuss the ozone layer.
