Write your 5 ways how to you can help earth​

any 5 ways to prevent earth are:

1.using ( 3R) principles Reduce, reuse, and recycle.

2.Educate yourself

3.Conserve water resources and other natural resources

4.Use long-lasting light bulbs.

5.stop deforestation and start afforestaion

1 I CAN THROW GARBAGE EVERYWHERE.

2 I SHOULD EXHAUST AS MUCH AS FOSSIL FUELS AS I CAN.

3. I SHOULD CUT DOWN TREES AND NEVER PLANT HERBS AND TREES.

4. I SHOULD USE AS PLASTIC AS I CAN AND WASTE PAPER EVERY TIME.

5. I SHOULD TRAVEL BY MY BIKE FOR JUST SHORT DISTANCES.

Explanation:

JUST DO OPPOSITES OF ALL ABOVE POINTS

DON'T JUST GET LAZY

DO SOMETHING WITH YOUR MIND TOO.

LOL

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms

your answer is a. the enthalpy of formation for a pure element in its standard state is always positive.