Answer:
HIV (human immunodeficiency virus) causes AIDS (Autoimmune deficiency syndrome) and reduces the ability of body to fight infection.
HIV was first found in 1959 in a man from Democratic Republic of the Congo and then announced as a world pandemic by WHO.
Approximately 37.9 million people were infected with HIV globally in 2018 but the pandemic statistics vary around the world. Sub-Saharan Africa was most infected region from HIV in 2018 where 61% population was infected from HIV/AIDS. In South & South-East Asia, about 12% of all people infected with HIV in 2010.
Now WHO announced HIV as 'global epidemic".
Answer:
447 calories
Explanation:
1 gram of fat is 9 calories
1 gram of carbohydrate is 4 calories
1 gram of protein is 4 calories
In one granola bar:
5 grams of fat = 5 x 9 = 45 calories
19 gram of carbohydrates = 19 x 4 = 76 calories
7 grams of protein = 7 x 4 = 28 calories
for a total of 45 + 76 + 28 = 149 calories
If Carter ate 3 granola bars then 149 x 3 = 447 calories
This varieation can be justified because since they had different variations they probably had different niches which led them to evolve differently,this will help because the two species will have no competition
Answer:
A.The hole in the ozone layer
Explanation:
• Montreal protocol is an international treaty that was signed to control the use of substances that are resulting in the depletion of the ozone hole.
This treaty was signed in the year 1987 and became effective form 1989.
• Since the time that this treaty has come into force, there has been a significant improvement in the ozone hole that was observed over Antarctic as it's size has decreased.
• This improvement has been possible because the treaty helped to phase out chemicals such as chlorofluorocarbons, carbon tetrachloride, etc. that are responsible for ozone hole depletion.
