Climate change is happening, it is caused in large part by human activity, and it will have many serious and potentially damaging effects in the decades ahead. Greenhouse gas emissions from cars, power plants and other man-made sources—rather than natural variations in climate—are the primary cause. These emissions include carbon dioxide — the main greenhouse gas — which has reached a concentration level in our atmosphere that the Earth hasn’t seen for more than 400,000 years. These greenhouse gases act like a blanket, trapping the sun’s warmth near the earth’s surface, and affecting the planet’s climate system.
Answer:

Explanation:
The length of LM is twice as the length of QR and the length of MN is twice as the length of RS. By Pythagorean theorem, the length of LN is twice as the length of QS. Then,
.
When Australia became the federated Commonwealth of Australia in 1901, Sydney and Melbourne competed to be the capital city. A compromise was reached and Canberra became the federal capital in 1928. The correct option among all the options given in the question is option "B".Canberra is not only the capital city of Australia but it is
also the eighth largest city overall in Australia. It has got a population of
around 381488. It is also considered as the largest inland city of Australia.
Answer: A moko on the face is the ultimate statement of one's identity as a Māori. The head is believed to be the most sacred part of the body. To wear the moko on the face is to bear an undeniable declaration of who you are.
Answer:
Option B is Correct
Explanation:
B. The natural channel had a lower gradient and higher friction than the straight channel.