An observation is something you saw happen whereas an inference is something you think will happen. You can guess that the water will fall through a static filled comb, but you observed the water moved away from the comb instead. (I saw this happen and I thought it was so cool)
B. Because of the presence of hydrogen sulphide in Brass, it combines with oxygen in air and form water, evaporates. So remained sulphide is colourless in air .So Brass gets discoloured in the air.
Answer:
Tectonic Plates and Plate Boundaries
There are three main types of plate boundaries:
Convergent boundaries: where two plates are colliding.
Divergent boundaries – where two plates are moving apart.
Transform boundaries – where plates slide passed each other.
Answer:
We can predict the ways organisms will interact in different ecosystems by comparing the NICHE they fill.
Answer:
convex lens
Explanation:
because when parallel rays of light pass through a lens are brought together through a lens
