I belive its C
Explatatiom burning something is chemical and melting something is physical.
Answer:
Option A
Explanation:
Only an autotrophic species can convert methane into food.
Deep below the sea, methane and hydrogen sulfide are found in abundance. These gases get mixed into the sea water.
Autotrophic bacteria containing phosynthetic pigments oxidize these dissolved gases thereby producing food.
Hence these autotrophic bacteria’s will be considered as producers as they produce food.
Thus, option A is correct.
I'm not for sure about it But i'm pretty sure it's D. Sorry if I'm wrong..
Answer: Option A.
Physical method of euthanasia may be the most humane method for relieving pain and sufferings for some instances.
Explanation:
Euthanasia is a physician assisted method with the deliberate intension to end ones life which might be due to some difficulties a person is passing through to relieve persistent pain. A Doctor is allow under law to do euthanasia for a patients if the patients family and friends agree to it.
Physical method of euthanasia includes gunshot, electrocution,freezing, microwave irradiation,cervical dislocation, decapitation,decompression, use of captive volt , pithing and so on.
