Question

Hello everyone!
I hope you all are doing well! Im practising for an exam and there is some points I need help with and they are:

1. photosynthesis:
Explain what the products of photosynthesis are used for.

2.Food Chains and Webs:
Explain how energy is lost at every trophic level.

3.Carbon cycle:
a- State the two main processes involved in the carbon cycle.
b- Describe how carbon in an ecosystem is balanced.
c- Explain ways in which humans can make the carbon cycle unbalanced.

4 Human Impacts on Local and Global Ecosystems:
a- State one way humans impact on an ecosystem.
b- Describe, with a consequence how humans impact on ecosystems.
c- Explain, with consequences from two perspectives how humans impact on ecosystems.

5 Physical and mental health:
a- Describe some ways to improve your health.
b Explain the consequences of having a poor physical and mental health.

6: Addictive Substances:
a State the names of some addictive substances
b- Describe the difference between ‘stimulants’ and ‘depressants’.
c- Explain how addictive drugs use the brain’s ‘reward system’.

I know this is much but I would really want to get an answer and the best answer will get a brainest :)

Answer 1

Answer:

1. Sun light, water , carbon dioxide, minerals, chlorophyll.

Explanation:

6-c - Increase in the production of GABA a neurotransmitter