Question

Prepare news on climate change to spread awareness amongst the people. You can include the causes and effects of climate change in short.​

Answer 1

Answer:

Key facts

•Climate change affects the social and environmental determinants of health – clean air, safe drinking water, sufficient food and secure shelter.

•Between 2030 and 2050, climate change is expected to cause approximately 250 000 additional deaths per year, from malnutrition, malaria, diarrhoea and heat stress.

•The direct damage costs to health (i.e. excluding costs in health-determining sectors such as agriculture and water and sanitation), is estimated to be between USD 2-4 billion/year by 2030.

•Areas with weak health infrastructure – mostly in developing countries – will be the least able to cope without assistance to prepare and respond.

•Reducing emissions of greenhouse gases through better transport, food and energy-use choices can result in improved health, particularly through reduced air pollution

Explanation:

Over the last 50 years, human activities – particularly the burning of fossil fuels – have released sufficient quantities of carbon dioxide and other greenhouse gases to trap additional heat in the lower atmosphere and affect the global climate.

In the last 130 years, the world has warmed by approximately 0.85oC. Each of the last 3 decades has been successively warmer than any preceding decade since 1850(1).

Sea levels are rising, glaciers are melting and precipitation patterns are changing. Extreme weather events are becoming more intense and frequent.

Answer 2

Explanation:

What is primary key ?

A primary key is a column or a set of columns in a table whose values uniquely identify a row in the table.

What is foreign key ?

... A foreign key is a column or a set of columns in a table whose values correspond to the values of the primary key in another table.

What is candidate key ?

Candidate Key is a super key with no repeated attributes.

What is alternate key ?

Alternate Key – is a column or group of columns in a table that uniquely identify every row in that table. ...