Which of the following explains why wind exists?
A. Air moves from areas of high pressure to
areas of low pressure.
B. Ions in the air repel and push each other
across the planet.
C. Air moves through the atmosphere due to
Earth's magnetic field.
D. The moon's gravity pulls air across Earth like
ocean tides.

Which of the following is not a main characteristic that scientists focus on when determining which kingdom an organism belongs to

Draw the structure of dna nucleotide with adenine as nitrogenous base

Cattle with brown fur and cattle with white fur will produce a reddish roan calf . when examined closely, the calf show about an even number of brown hairs and white hairs that give a reddish appearance when viewed from far away. the fact that both the brown fur allele and the white fur allele are expressed equally in the offspring is an example of