The correct answer is (B) they travel faster than S waves
As the interior of the earth is incompressible, the P-waves moves much faster and transmit their energy through the medium and travel very fast as compared to the S waves. In case of S waves, they are slow because the movement of medium is perpendicular to the direction of propagation of waves’ waves travel 60 times faster than S waves. The variation in speed of travel is because the earth reacts differently to both the waves.
Pine cone seeds are produced in the <u>ovules</u> of the <u>female</u> cone.
Pine trees are evergreen coniferous trees with the presence of the characteristic needle like photosynthetic leaves. Pine trees have both the male and female cones on the same tree and are monoecious. The male cones are short lived and fall off after shedding pollen grains. The female cones are long lived and contain the ovules which are fertilized by the pollen to form seeds. Each female cone has spirally arranged scales with two seeds on each scale. On maturity, the cones release the seeds and are dispersed by wind or birds.
Answer:
A thick, dense fur, keeps the fox warm during winter, by preventing excessive loss of temperature and body heat when it is cold.
Answer:
DNA is the 33 chromosomes. RNA is the protein that exists in viruses... that's All what I know.
Ammonia synthesis exponentially increased harvests and will continue to do so for years to come. His invention is credited with saving millions of lives and will probably save billions more.
