Explanation:
cigaratte smoking is injurious to health because it affects our lungs,heart and different internal organs of our body which is cause of cancer and other non curable diseases.
Answer:
C
Explanation:
The moon revovles around the sun. While the moon goes around the earth, some half of the moon will be lighted up by the sun. The other side will always be in darkness. Hope this helps :)
Answer:
D. Using only geothermal energy is a sustainable practice.
Explanation:
Geothermal energy is heat derived within the sub-surface of the earth.
500 because of the 10% rule when moving up in food chains, for example; patch of grass-200J rabbit eats some of it but doesn’t eat all - 150J the rabbit runs around for a bit and loses energy, the fox doesn’t eat all of the rabbit - 50J ( just a rough example may not be completely right but the concept of the rule is there and the energy).
<span>enzymes are resuable as they are biologically catalyst which speeds up the rate of a reaction without being chemically changed themselves. However, if the enzyme is to be denatured under unfavourable conditions (extreme temperatures, extreme pH), the enzymes may not be reusable once denatured.</span>
