Answer:
i need help on 17,18,19,20 i will be giving a brainiest
Explanation:
17 b
18 c
19 d
20 d
Answer:
ecological validity.
Explanation:
Ecological validity: The term ecological validity is defined as the limit or extent to which a particular findings of specific research study can be generalized into real-life settings. If the ecological validity of a particular study is considered to be high then it is believed that the behavior being recorder from the research can be applied in day to day life and it signifies that the result is considered to be as useful.
In the question above, the approach emphasizes the ecological validity.
The challenges to the natural environment today are immense the UAE faces the impact of rapid development and effects of climate change and global warming.
Protection of environment and sustainable development are key topics which receives great attention from UAE
Government
Environmental issues in Dubai
• invasive species are a key factor with negative effect on the UAE,S biodiversity
Cordon foot prints
• air pollution
• limited water sources
• overfishing
• land degradation and desertification
and waste generation
Answer:
Acetylchloline
Explanation: this is one of the most richly supplied neurotransmitter in the body of man. It helps in body movement by helping muscles to strink. It also stimulate our reactions to pain.it is found only in the Central and pheripheral nervous system. It is a type of inhibitory and excitatory neurotransmitter that's help also in human memory and learning and also muscle contraction.
b. a hope that democracy would spread.
Explanation:
Nelson Mandela is probably the most recognizable person from Africa and one of the most influential people from this continent. He was a human rights fighter and his main goal was that South Africa and later the rest of Africa gets rid off the European rule, democracy is established, everyone to have the same rights and opportunities.
This was a partial success. Mandela became a president of South Africa and the situation quickly changed in the country. The Africans were ruling their own country in their own way and that was seen as a great achievement. On the other hand, numerous groups emerged and were allowed to exist which were openly spreading hatred and were attacking and murdering the white people in the country. One of the people involved in this was actually Nelson Mandela's wife which was actually responsible for burning people alive. It was not democracy by no means, instead it seemed that the cards have just switched.
Lot of African countries saw this as an opportunity to become democratic and rule themselves. Pretty much all of the African countries indeed started to rule themselves, and Africa became truly African. The problem was that in most of those countries there was not a democracy. The white people were attacked. Their properties taken without compensation. They were forced to live the countries, and many were even murdered. A good example is Zimbabwe.
