A garage door opening device has a light near the floor. This light is pointed at a receiver. If a cat runs under the door while it is opening, the garage door stops moving. What property of light applies to this situation? A) The light changes color as it bounces off the cat. B) Light is a wave of energy which is absorbed by objects like the cat. C) Light will change speed when it strikes the cat before it gets to the receiver. D) Light travels in a straight line. The cat blocks the light from getting to the receiver.

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

c (diamond),

sio2 (quartz)

answer: they produce more slow than unicellular organisms.