Relative date , which fossils in layers of rocks are placed in order from older to younger.
radiometric dating ,allows actual ages of actual rocks to be determined
Answer: refraction
Explanation:light rays bend when they go through glass or water this is why you see your straw bend in the cup sometimes
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Immunity that is genetically determined and present at birth is called
innate immunity.
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The innate immunity is also called inborn immunity. This is the first line of defence against infection and it provides immediate defence.<span> The innate immune system is nonspecific</span> and <span>its activated by the presence of the antigen of a pathogen (virus, bacteria, parasite).</span></span>
Answer:
The correct Answer is the first , second and fourth
Explanation:
I guessed on that for a while no cap
Answer:
Advantages and disadvantages:
Explanation:
Advantages:
- provides 20% of the worlds crops
- on 75% of cultivated land
- mostly in less-developed countries
Disadvantages:
- takes a-lot of time to get harvested
- pesticides will be used (unhealthy crops)
- farmers dont make as much money