Light is a form of EM radiation.
EM radiation has no mass (it's just energy packets called photons).
EM radiation can travel through a vacuum. (The speed of light in a vacuum is called c and is around 300,000 m/s).
Hope this helps!
I think the answer is A
Hope this helps!!!!!:)
Have a great day!!
White blood cells (D) aid in the immune system to fight infections.
Answer:
The answer is c. net barriers.
Non-native species can do a great harm to native species or ecosystem and there are many ways to control them. Net barriers are mechanical control. Pesticides and herbicides are chemical control. There are also natural (biological control) control, such as diseases and pests, and environmental control, by altering the environment.
According to uniformitarianism, (C) the rate of geolgic processes remain the same over time, and the processes themselves remain the same.
